Species Recorded | Taxon | Scientific Name | Common Name | Records | Latest |
| alder fly, lacewing or snake fly | Psectra diptera | a brown lacewing | 1 | 2018 |
| algae or stonewort | Pelvetia canaliculata | Channelled Wrack | 36 | 2019 |
| amphibian | Pelophylax esculentus | Edible Frog | 1 | 2004 |
| amphibian | Pelophylax lessonae | Pool Frog | 6 | 2020 |
| amphibian | Pelophylax ridibundus | Marsh Frog | 4 | 2013 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pachyneuron formosum | a chalcid wasp | 8 | 2009 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pachyprotasis antennata | a sawfly | 3 | 2017 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pachyprotasis rapae | a sawfly | 5 | 2006 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pachyprotasis variegata | a sawfly | 2 | 2004 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pamphilius hortorum subsp. hortorum | an insect - hymenopteran | 1 | 1980 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pamphilius sylvaticus | a sawfly | 1 | 2000 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Panteles schuetzeanus | an insect - hymenopteran | 1 | 2021 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Panurgus banksianus | a solitary bee | 1 | 2000 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Passaloecus corniger | Horned Black Wasp | 2 | 2000 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Passaloecus gracilis | a solitary wasp | 1 | 1997 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Passaloecus insignis | a solitary wasp | 2 | 1999 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Passaloecus singularis | a solitary wasp | 8 | 2009 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pemphredon | a Pemphredon species (unidentified) | 1 | 2015 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pemphredon inornata | Shuckard's Wasp | 17 | 2003 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pemphredon lethifer | Little Black Wasp | 9 | 2006 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pemphredon lugubris | Mournful Wasp | 3 | 2000 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pemphredon morio | a solitary wasp | 1 | 1997 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Periclistus brandtii | a gall wasp | 1 | 1998 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Phaedrotoma caesa | an insect - hymenopteran | 1 | 2008 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Phaenoglyphis villosa | a gall wasp | 2 | 2009 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Phanacis hypochoeridis | a gall wasp | 11 | 2018 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Phaneroserphus calcar | a small parasitic wasp | 2 | 2003 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Philanthus triangulum | Bee Wolf | 4 | 2001 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Phradis morionellus | an insect - hymenopteran | 3 | 2009 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Phygadeuon subtilis | an insect - hymenopteran | 3 | 2003 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Phygadeuon trichops | an insect - hymenopteran | 1 | 2003 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Phygadeuon variabilis | an insect - hymenopteran | 2 | 2003 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Phylloecus linearis | a sawfly | 4 | 2008 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Phymatocera aterrima | Solomon's-seal Sawfly | 7 | 2020 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pimpla | a Pimpla species (unidentified) | 4 | 2018 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pimpla flavicoxis | an ichneumon wasp | 4 | 2003 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pimpla rufipes | an ichneumon wasp | 16 | 2020 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pimpla spuria | an ichneumon wasp | 2 | 2003 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pimpla turionellae | an ichneumon wasp | 2 | 1996 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pimplinae | a Pimplinae species (unidentified) | 1 | 2006 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Piogaster albina | an ichneumon wasp | 1 | 2006 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Plutothrix bicolorata | a chalcid wasp | 3 | 1995 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Plutothrix coelius | a chalcid wasp | 1 | 1997 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pnigalio pectinicornis | a chalcid wasp | 1 | 1997 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Podalonia hirsuta | Hairy Sand Wasp | 1 | 2009 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Polysphincta tuberosa | an ichneumon wasp | 3 | 2013 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Ponera coarctata | Indolent Ant | 1 | 1978 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Praon | a Praon species (unidentified) | 1 | 1979 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Priocnemis coriacea | a spider-hunting wasp | 1 | 1999 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Priocnemis exaltata | a spider-hunting wasp | 5 | 2015 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Priocnemis parvula | a spider-hunting wasp | 1 | 2000 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Priocnemis perturbator | a spider-hunting wasp | 2 | 2001 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Priocnemis propinqua | a spider-hunting wasp | 1 | 2015 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Priocnemis pusilla | a spider-hunting wasp | 5 | 2001 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Priocnemis susterai | a spider-hunting wasp | 1 | 1997 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pristiphora aphantoneura | an insect - hymenopteran | 2 | 2004 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pristiphora appendiculata | a sawfly | 1 | 1997 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pristiphora armata | an insect - hymenopteran | 1 | 2001 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Proctotrupes gravidator | a small parasitic wasp | 3 | 1997 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Profenusa pygmaea | a sawfly | 7 | 2020 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Promethes sulcator | an ichneumon wasp | 1 | 1998 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Psenulus concolor | a solitary wasp | 2 | 2013 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Psenulus pallipes | Pale Footed Black Wasp | 6 | 2006 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Psenulus schencki | a solitary wasp | 1 | 2003 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pseudodineura fuscula | a sawfly | 1 | 2008 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pseudomalus auratus | a rubytail wasp | 8 | 2020 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pseudoneuroterus saliens | a gall wasp | 4 | 2021 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pseudoneuroterus saliens f. agamic | a gall wasp | 1 | 2019 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pteromalidae | a Pteromalidae species (unidentified) | 1 | 2015 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pteromalus | a Pteromalus species (unidentified) | 2 | 2015 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pteromalus apum | a chalcid wasp | 1 | 1994 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pteromalus bedeguaris | a chalcid wasp | 3 | 2007 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pteromalus chlorospilus | a chalcid wasp | 1 | 2009 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pteromalus chrysos | a chalcid wasp | 1 | 2009 |
| ant, bee, wasp, sawfly or ichneumon (and others) | Pteromalus cioni | a chalcid wasp | 1 | 2009 |
| bacterium | Phormidium | a Phormidium species (unidentified) | 1 | 2010 |
| bacterium | Pseudomonas | a Pseudomonas sp (unidentified) | 1 | 2013 |
| beetle | Pachyrhinus lethierryi | a weevil | 7 | 2021 |
| beetle | Pachytodes cerambyciformis | a longhorn beetle | 2 | 1980 |
| beetle | Paederus fuscipes | a rove beetle | 33 | 2021 |
| beetle | Paederus littoralis | a rove beetle | 92 | 2021 |
| beetle | Paederus riparius | a rove beetle | 18 | 2021 |
| beetle | Parabolitobius inclinans | a rove beetle | 1 | 2021 |
| beetle | Paradromius linearis | a ground beetle | 57 | 2021 |
| beetle | Paranchus albipes | a ground beetle | 10 | 2020 |
| beetle | Parethelcus pollinarius | a weevil | 14 | 2021 |
| beetle | Paromalus flavicornis | a carrion beetle | 9 | 2019 |
| beetle | Patrobus atrorufus | a ground beetle | 6 | 1999 |
| beetle | Pediacus dermestoides | a flat bark beetle | 15 | 2021 |
| beetle | Pelenomus canaliculatus | a Beetle | 6 | 2004 |
| beetle | Pelenomus comari | a weevil | 2 | 2015 |
| beetle | Pelenomus quadrituberculatus | a weevil | 3 | 2016 |
| beetle | Pelenomus zumpti | a weevil | 2 | 2019 |
| beetle | Peltodytes caesus | a crawling water beetle | 48 | 2013 |
| beetle | Perapion curtirostre | a seed weevil | 15 | 2019 |
| beetle | Perapion hydrolapathi | a seed weevil | 25 | 2021 |
| beetle | Perapion marchicum | a seed weevil | 3 | 2017 |
| beetle | Perapion violaceum | a seed weevil | 15 | 2020 |
| beetle | Phacophallus parumpunctatus | a rove beetle | 1 | 1998 |
| beetle | Phaedon armoraciae | a Mustard Beetle | 1 | 2015 |
| beetle | Phaedon cochleariae | a Mustard Beetle | 12 | 2016 |
| beetle | Phaedon concinnus | a leaf beetle | 2 | 2000 |
| beetle | Phaedon tumidulus | Celery Leaf Beetle | 28 | 2021 |
| beetle | Phaleria cadaverina | a darkling beetle | 1 | 2017 |
| beetle | Philonthus | a Philonthus species (unidentified) | 2 | 2013 |
| beetle | Philonthus carbonarius | a rove beetle | 27 | 2021 |
| beetle | Philonthus cognatus | a rove beetle | 36 | 2021 |
| beetle | Philonthus concinnus | a rove beetle | 1 | 2021 |
| beetle | Philonthus cruentatus | a rove beetle | 3 | 1978 |
| beetle | Philonthus decorus | a rove beetle | 21 | 2021 |
| beetle | Philonthus ebeninus | a rove beetle | 1 | 2021 |
| beetle | Philonthus intermedius | a rove beetle | 1 | 2017 |
| beetle | Philonthus laminatus | a rove beetle | 7 | 2020 |
| beetle | Philonthus marginatus | a rove beetle | 9 | 2021 |
| beetle | Philonthus micans | a rove beetle | 1 | 1983 |
| beetle | Philonthus nitidicollis | a rove beetle | 1 | 2019 |
| beetle | Philonthus politus | a rove beetle | 5 | 2017 |
| beetle | Philonthus quisquiliarius | a rove beetle | 3 | 2021 |
| beetle | Philonthus splendens | a rove beetle | 4 | 2007 |
| beetle | Philonthus tenuicornis | a rove beetle | 2 | 2016 |
| beetle | Philonthus varians | a rove beetle | 5 | 2019 |
| beetle | Philopedon plagiatum | Marram Weevil | 2 | 2019 |
| beetle | Philorhizus melanocephalus | a ground beetle | 11 | 2019 |
| beetle | Philorhizus notatus | a ground beetle | 1 | 1995 |
| beetle | Phloeonomus punctipennis | a rove beetle | 6 | 2020 |
| beetle | Phloeophagus lignarius | a weevil | 3 | 2004 |
| beetle | Phloeopora testacea | a rove beetle | 1 | 2001 |
| beetle | Phloeostiba plana | a rove beetle | 1 | 2001 |
| beetle | Phloiophilus edwardsii | a beetle | 2 | 2015 |
| beetle | Phloiotrya vaudoueri | a false darkling beetle | 1 | 2021 |
| beetle | Phratora | a Phratora species (unidentified) | 1 | 2018 |
| beetle | Phratora laticollis | a Beetle | 12 | 2021 |
| beetle | Phratora vitellinae | Brassy Willow Beetle | 10 | 2021 |
| beetle | Phratora vulgatissima | Blue Willow Beetle | 21 | 2021 |
| beetle | Phyllobius | a Phyllobius species (unidentified) | 12 | 2018 |
| beetle | Phyllobius argentatus | Silver-green Leaf Weevil | 8 | 2021 |
| beetle | Phyllobius glaucus | a weevil | 7 | 2021 |
| beetle | Phyllobius maculicornis | Green Leaf Weevil | 2 | 2015 |
| beetle | Phyllobius oblongus | Brown Leaf Weevil | 9 | 2019 |
| beetle | Phyllobius pomaceus | Great Nettle Weevil | 106 | 2021 |
| beetle | Phyllobius pyri | Common Leaf Weevil | 47 | 2021 |
| beetle | Phyllobius roboretanus | Small Green Nettle Weevil | 78 | 2021 |
| beetle | Phyllobius virideaeris | a weevil | 5 | 2021 |
| beetle | Phyllobius viridicollis | a weevil | 2 | 2015 |
| beetle | Phyllobrotica quadrimaculata | Skullcap Leaf Beetle | 2 | 2003 |
| beetle | Phyllodrepa floralis | a rove beetle | 1 | 1998 |
| beetle | Phyllopertha | a Phyllopertha species (unidentified) | 1 | 2015 |
| beetle | Phyllopertha horticola | Garden Chafer | 70 | 2022 |
| beetle | Phyllotreta | a Phyllotreta species (unidentified) | 2 | 2014 |
| beetle | Phyllotreta atra | a Turnip Flea Beetle | 4 | 2018 |
| beetle | Phyllotreta flexuosa | a leaf beetle | 1 | 2015 |
| beetle | Phyllotreta nemorum | a Turnip Flea Beetle | 24 | 2021 |
| beetle | Phyllotreta nigripes | a Turnip Flea Beetle | 4 | 2008 |
| beetle | Phyllotreta nodicornis | a leaf beetle | 1 | 1991 |
| beetle | Phyllotreta ochripes | a leaf beetle | 1 | 2016 |
| beetle | Phyllotreta punctulata | a leaf beetle | 1 | 2001 |
| beetle | Phyllotreta undulata | Small Turnip Flea Beetle | 10 | 2019 |
| beetle | Phymatodes testaceus | Tanbark Borer | 3 | 2017 |
| beetle | Phytobius leucogaster | a weevil | 2 | 1999 |
| beetle | Phytoecia cylindrica | Umbellifer Longhorn Beetle | 9 | 2017 |
| beetle | Pissodes castaneus | a Banded Pine Weevil | 1 | 2019 |
| beetle | Plagiodera versicolora | a leaf beetle | 9 | 2019 |
| beetle | Platambus maculatus | a water beetle | 11 | 2007 |
| beetle | Plateumaris discolor | a leaf beetle | 5 | 2004 |
| beetle | Plateumaris rustica | a leaf beetle | 1 | 2001 |
| beetle | Plateumaris sericea | a leaf beetle | 12 | 2014 |
| beetle | Platycis minutus | a net-winged beetle | 18 | 2021 |
| beetle | Platyderus depressus | a ground beetle | 1 | 1999 |
| beetle | Platydracus stercorarius | a rove beetle | 14 | 2018 |
| beetle | Platynus assimilis | a ground beetle | 2 | 2009 |
| beetle | Platypus cylindrus | Oak Pin-hole Borer | 3 | 2018 |
| beetle | Platyrhinus resinosus | Cramp-ball Fungus Weevil | 46 | 2021 |
| beetle | Platystethus alutaceus | a rove beetle | 1 | 2019 |
| beetle | Platystethus arenarius | a rove beetle | 3 | 2021 |
| beetle | Platystethus nitens | a rove beetle | 9 | 2021 |
| beetle | Plegaderus dissectus | a carrion beetle | 5 | 2020 |
| beetle | Pocadius ferrugineus | a pollen or sap beetle | 1 | 2018 |
| beetle | Podabrus alpinus | a soldier beetle | 1 | 2015 |
| beetle | Poecilium alni | a longhorn beetle | 2 | 2006 |
| beetle | Poecilus cupreus | a ground beetle | 90 | 2021 |
| beetle | Poecilus versicolor | a ground beetle | 19 | 2020 |
| beetle | Pogonocherus hispidulus | Greater Thorn-tipped Longhorn Beetle | 4 | 2020 |
| beetle | Pogonocherus hispidus | Lesser Thorn-tipped Longhorn Beetle | 18 | 2020 |
| beetle | Pogonus chalceus | a ground beetle | 17 | 2020 |
| beetle | Polydrusus | a Polydrusus species (unidentified) | 6 | 2019 |
| beetle | Polydrusus cervinus | a weevil | 15 | 2021 |
| beetle | Polydrusus flavipes | a weevil | 1 | 2021 |
| beetle | Polydrusus formosus | a weevil | 24 | 2021 |
| beetle | Polydrusus pilosus | a weevil | 1 | 2016 |
| beetle | Polydrusus pterygomalis | a weevil | 49 | 2021 |
| beetle | Polydrusus pulchellus | Sea-wormwood Weevil | 7 | 2019 |
| beetle | Polydrusus tereticollis | a weevil | 1 | 2020 |
| beetle | Poophagus sisymbrii | a weevil | 2 | 1983 |
| beetle | Porhydrus lineatus | a water beetle | 24 | 2013 |
| beetle | Prasocuris junci | Brooklime Leaf Beetle | 4 | 2002 |
| beetle | Prasocuris phellandrii | a leaf beetle | 8 | 1999 |
| beetle | Prionocyphon serricornis | a marsh beetle | 3 | 2015 |
| beetle | Prionychus ater | a darkling beetle | 6 | 2021 |
| beetle | Procraerus tibialis | a click beetle | 1 | 2016 |
| beetle | Propylea quattuordecimpunctata | 14-spot Ladybird | 458 | 2022 |
| beetle | Prosternon tessellatum | Chequered Click Beetle | 12 | 2021 |
| beetle | Protaetia cuprea ssp. metallica | a dung beetle or chafer | 1 | 2001 |
| beetle | Protapion | a Protapion species (unidentified) | 1 | 2012 |
| beetle | Protapion apricans | a Clover Seed Weevil | 21 | 2021 |
| beetle | Protapion assimile | a Clover Seed Weevil | 13 | 2019 |
| beetle | Protapion dissimile | a seed weevil | 1 | 2019 |
| beetle | Protapion fulvipes | White Clover Seed Weevil | 63 | 2020 |
| beetle | Protapion nigritarse | a seed weevil | 5 | 2019 |
| beetle | Protapion ononidis | a seed weevil | 1 | 2015 |
| beetle | Protapion schoenherri | a seed weevil | 4 | 2001 |
| beetle | Protapion trifolii | a Clover Seed Weevil | 20 | 2020 |
| beetle | Protapion varipes | a seed weevil | 1 | 2019 |
| beetle | Proteinus brachypterus | a rove beetle | 53 | 2021 |
| beetle | Proteinus crenulatus | a rove beetle | 1 | 2007 |
| beetle | Proteinus ovalis | a rove beetle | 4 | 2020 |
| beetle | Protopirapion atratulum | a seed weevil | 4 | 2001 |
| beetle | Pselaphus heisei | a short-winged mould beetle | 2 | 2020 |
| beetle | Pseudapion rufirostre | a seed weevil | 3 | 2015 |
| beetle | Pseudocistela ceramboides | a darkling beetle | 10 | 2016 |
| beetle | Pseudophloeophagus aeneopiceus | a weevil | 3 | 1995 |
| beetle | Pseudopsis | a Pseudopsis species (unidentified) | 1 | 2013 |
| beetle | Psylliodes | a Psylliodes species (unidentified) | 3 | 2019 |
| beetle | Psylliodes affinis | Potato Flea Beetle | 4 | 2017 |
| beetle | Psylliodes chalcomera | a leaf beetle | 2 | 2016 |
| beetle | Psylliodes chrysocephala | Cabbage Stem Flea Beetle | 34 | 2020 |
| beetle | Psylliodes cuprea | a leaf beetle | 1 | 2008 |
| beetle | Psylliodes dulcamarae | a leaf beetle | 3 | 2015 |
| beetle | Psylliodes laticollis | a leaf beetle | 4 | 2018 |
| beetle | Psylliodes napi | a leaf beetle | 3 | 2018 |
| beetle | Psyllobora vigintiduopunctata | 22-spot Ladybird | 157 | 2021 |
| beetle | Pteleobius vittatus | a bark or ambrosia beetle | 1 | 1919 |
| beetle | Ptenidium laevigatum | a featherwing beetle | 2 | 2015 |
| beetle | Ptenidium nitidum | a Beetle | 1 | 2016 |
| beetle | Pterostichus | a Pterostichus species (unidentified) | 16 | 2015 |
| beetle | Pterostichus anthracinus | a ground beetle | 6 | 2017 |
| beetle | Pterostichus diligens | a ground beetle | 7 | 2020 |
| beetle | Pterostichus macer | a ground beetle | 1 | 1986 |
| beetle | Pterostichus madidus | Black Clock | 185 | 2021 |
| beetle | Pterostichus melanarius | a ground beetle | 77 | 2020 |
| beetle | Pterostichus minor | a ground beetle | 9 | 2018 |
| beetle | Pterostichus niger | a ground beetle | 38 | 2021 |
| beetle | Pterostichus nigrita | a ground beetle | 4 | 2014 |
| beetle | Pterostichus nigrita agg. | a ground beetle | 5 | 2010 |
| beetle | Pterostichus rhaeticus | a ground beetle | 1 | 2014 |
| beetle | Pterostichus strenuus | a ground beetle | 75 | 2021 |
| beetle | Pterostichus vernalis | a ground beetle | 30 | 2020 |
| beetle | Ptilinus pectinicornis | Fan-bearing Wood-borer | 21 | 2020 |
| beetle | Ptinus | a Ptinus species (unidentified) | 2 | 2021 |
| beetle | Ptinus fur | White-marked Spider Beetle | 2 | 1970 |
| beetle | Ptinus subpilosus | a spider beetle | 3 | 2020 |
| beetle | Ptinus tectus | Australian Spider Beetle | 1 | 1970 |
| beetle | Ptomaphagus subvillosus | a round fungus beetle | 4 | 2018 |
| beetle | Pycnota paradoxa | a rove beetle | 1 | 2003 |
| beetle | Pyrochroa | a Pyrochroa species (unidentified) | 2 | 2014 |
| beetle | Pyrochroa coccinea | Black-headed Cardinal Beetle | 21 | 2021 |
| beetle | Pyrochroa serraticornis | Common Cardinal Beetle | 231 | 2022 |
| beetle | Pyrochroidae sp. or Lycidae sp. | a cardinal or a net-winged beetle (unidentified) | 8 | 2018 |
| beetle | Pyrrhalta viburni | Viburnum Leaf Beetle | 19 | 2021 |
| beetle | Pyrrhidium sanguineum | a longhorn beetle known as Longhorn Beetle | 10 | 2018 |
| bird | Padda oryzivora | Java Sparrow | 2 | 2015 |
| bird | Pagophila eburnea | Ivory Gull | 1 | 1860 |
| bird | Pandion haliaetus | Osprey | 1210 | 2021 |
| bird | Panurus biarmicus | Bearded Tit | 413 | 2021 |
| bird | Parabuteo unicinctus | Harris's Hawk | 5 | 2018 |
| bird | Paridae | a tit (unidentified) | 46 | 2020 |
| bird | Parus | a Parus tit (unidentified) | 11 | 2019 |
| bird | Parus major | Great Tit | 50711 | 2023 |
| bird | Passer | a sparrow (unidentified) | 62 | 2020 |
| bird | Passer domesticus | House Sparrow | 60287 | 2023 |
| bird | Passer domesticus x Passer hispaniolensis | House Sparrow x Spanish Sparrow | 26 | 2019 |
| bird | Passeridae | a Passeridae species (unidentified) | 1 | 2021 |
| bird | Passer montanus | Tree Sparrow | 2140 | 2020 |
| bird | Pastor roseus | Rose-coloured Starling | 95 | 2021 |
| bird | Pavo cristatus | Indian Peafowl | 4 | 2019 |
| bird | Perdix/Alectoris sp. | a partridge (unidentified) | 14 | 2010 |
| bird | Perdix perdix | Grey Partridge | 209 | 2021 |
| bird | Perdix sp. or Alectoris sp. or Coturnix sp. (a partridge or quail unidentified) | a partridge or quail (unidentified) | 2 | 2002 |
| bird | Periparus ater | Coal Tit | 22381 | 2023 |
| bird | Pernis apivorus | Honey Buzzard | 8 | 2017 |
| bird | Phalacrocoracidae | a Phalacrocoracidae species (unidentified) | 2 | 2020 |
| bird | Phalacrocorax aristotelis | Shag | 59 | 2021 |
| bird | Phalacrocorax carbo | Cormorant | 14863 | 2022 |
| bird | Phalacrocorax carbo sinensis | Southern Cormorant | 26 | 2019 |
| bird | Phalaropus fulicarius | Grey Phalarope | 381 | 2021 |
| bird | Phalaropus lobatus | Red-necked Phalarope | 16 | 2020 |
| bird | Phalaropus tricolor | Wilson's Phalarope | 1 | 1986 |
| bird | Phasianus colchicus | Pheasant | 9438 | 2023 |
| bird | Phasianus colchicus colchicus | a pheasant | 1 | 2006 |
| bird | Phoenicurus ochruros | Black Redstart | 1584 | 2021 |
| bird | Phoenicurus phoenicurus | Redstart | 2009 | 2022 |
| bird | Phylloscopus | a Leaf Warbler (unidentified) | 34 | 2019 |
| bird | Phylloscopus collybita | Chiffchaff | 26972 | 2023 |
| bird | Phylloscopus collybita tristis | Siberian ChiffChaff | 252 | 2021 |
| bird | Phylloscopus fuscatus | Dusky Warbler | 12 | 2020 |
| bird | Phylloscopus ibericus | Iberian Chiffchaff | 14 | 2017 |
| bird | Phylloscopus inornatus | Yellow-browed Warbler | 154 | 2021 |
| bird | Phylloscopus proregulus | Pallas's Warbler | 33 | 2020 |
| bird | Phylloscopus sibilatrix | Wood Warbler | 648 | 2021 |
| bird | Phylloscopus trochiloides | Greenish Warbler | 3 | 2014 |
| bird | Phylloscopus trochilus | Willow Warbler | 6712 | 2022 |
| bird | Pica pica | Magpie (bird) | 60913 | 2023 |
| bird | Picidae | a woodpecker (unidentified) | 78 | 2021 |
| bird | Picus viridis | Green Woodpecker | 18601 | 2023 |
| bird | Platalea leucorodia | Spoonbill | 103 | 2021 |
| bird | Plectrophenax nivalis | Snow Bunting | 199 | 2021 |
| bird | Plegadis falcinellus | Glossy Ibis | 230 | 2021 |
| bird | Ploceus melanocephalus | Black-headed Weaver | 1 | 2009 |
| bird | Pluvialis apricaria | Golden Plover | 1578 | 2021 |
| bird | Pluvialis dominica | American Golden Plover | 1 | 2013 |
| bird | Pluvialis squatarola | Grey Plover | 2909 | 2021 |
| bird | Podiceps auritus | Slavonian Grebe | 244 | 2021 |
| bird | Podiceps cristatus | Great Crested Grebe | 4331 | 2022 |
| bird | Podiceps grisegena | Red-necked Grebe | 9 | 2012 |
| bird | Podiceps nigricollis | Black-necked Grebe | 2505 | 2021 |
| bird | Podicipedidae | a grebe (unidentified) | 2 | 2017 |
| bird | Podilymbus podiceps | Pied-billed Grebe | 1 | 1986 |
| bird | Poecile montanus | Willow Tit | 15 | 2020 |
| bird | Poecile montanus/palustris agg. | Marsh/Willow Tit | 2 | 2009 |
| bird | Poecile palustris | Marsh Tit | 2871 | 2021 |
| bird | Poicephalus senegalus | Senegal Parrot | 3 | 2010 |
| bird | Polytelis anthopeplus | Regent Parrot | 4 | 2015 |
| bird | Porzana porzana | Spotted Crake | 94 | 2018 |
| bird | Prunella modularis | Dunnock | 41738 | 2023 |
| bird | Psittacara holochlorus | Green Parakeet | 1 | 2015 |
| bird | Psittacidae | a Psittacidae species (unidentified) | 1 | 2018 |
| bird | Psittacidae or Psittaculidae | a parrot or a parakeet or a budgerigar (unidentified) | 1 | 2013 |
| bird | Psittacula krameri | Ring-necked Parakeet | 359 | 2021 |
| bird | Puffinus mauretanicus | Balearic Shearwater | 5 | 2021 |
| bird | Puffinus puffinus | Manx Shearwater | 280 | 2021 |
| bird | Pyrrhocorax pyrrhocorax | Chough | 1 | 2006 |
| bird | Pyrrhula pyrrhula | Bullfinch | 14446 | 2022 |
| booklouse or barklouse | Peripsocus consobrinus | a booklouse or barklouse | 1 | 1930 |
| booklouse or barklouse | Philotarsus parviceps | an insect - booklouse (Psocoptera) | 2 | 2014 |
| booklouse or barklouse | Psococerastis gibbosa | a booklouse or barklouse | 1 | 2014 |
| booklouse or barklouse | Psocoptera | a Psocoptera species (unidentified) | 3 | 2018 |
| bristletail (silverfish and allies) | Petrobius | a Petrobius species (unidentified) | 1 | 2001 |
| bristletail (silverfish and allies) | Petrobius brevistylis | a three-pronged bristle tail | 11 | 2018 |
| bristletail (silverfish and allies) | Petrobius maritimus | Sea Bristletail | 4 | 2021 |
| bug | Palomena prasina | Green Shield Bug | 689 | 2022 |
| bug | Pantilius (Pantilius) tunicatus | a plantbug or grassbug | 28 | 2022 |
| bug | Paracorixa concinna | a waterboatman | 6 | 2003 |
| bug | Parapiesma quadratum | an insect - true bug (Hemiptera) | 3 | 2019 |
| bug | Parthenolecanium corni | European Fruit Lecanium | 1 | 1999 |
| bug | Pediopsis tiliae | a leafhopper | 1 | 1998 |
| bug | Pemphigus | a Pemphigus species (unidentified) | 15 | 1975 |
| bug | Pemphigus (Pemphigus) bursarius | Poplar-lettuce Aphid | 1 | 2017 |
| bug | Pemphigus (Pemphigus) spyrothecae | Poplar Spiral Gall Aphid | 3 | 2014 |
| bug | Pentastiridius leporinus | a lacehopper | 13 | 2020 |
| bug | Pentatoma rufipes | Forest Bug | 240 | 2022 |
| bug | Pentatomidae | a Pentatomidae species (unidentified) | 2 | 2018 |
| bug | Periphyllus testudinaceus | Common Maple Aphid | 2 | 2015 |
| bug | Peritrechus geniculatus | a ground bug | 13 | 2021 |
| bug | Peritrechus lundii | a ground bug | 3 | 2021 |
| bug | Philaenus spumarius | Cuckoo-spit Insect | 332 | 2022 |
| bug | Phorodon (Phorodon) humuli | Damson-Hop Aphid | 22 | 1975 |
| bug | Phyllaphis fagi | Beech Aphid | 8 | 2015 |
| bug | Phylus (Phylus) coryli | a plantbug or grassbug | 12 | 2021 |
| bug | Phylus (Phylus) melanocephalus | a plantbug or grassbug | 15 | 2022 |
| bug | Physatocheila dumetorum | a lace bug | 16 | 2020 |
| bug | Phytocoris | a Phytocoris species (unidentified) | 2 | 2019 |
| bug | Phytocoris (Ktenocoris) ulmi | a plantbug or grassbug | 17 | 2021 |
| bug | Phytocoris (Ktenocoris) varipes | a plantbug or grassbug | 52 | 2021 |
| bug | Phytocoris (Phytocoris) dimidiatus | an insect - true bug (Hemiptera) | 3 | 2018 |
| bug | Phytocoris (Phytocoris) longipennis | a plantbug or grassbug | 9 | 2021 |
| bug | Phytocoris (Phytocoris) populi | a plantbug or grassbug | 2 | 1995 |
| bug | Phytocoris (Phytocoris) reuteri | a plantbug or grassbug | 5 | 2019 |
| bug | Phytocoris (Phytocoris) tiliae | a plantbug or grassbug | 13 | 2021 |
| bug | Picromerus bidens | Spined Shieldbug | 10 | 2021 |
| bug | Piesma maculatum | a beet bug | 2 | 2004 |
| bug | Piezodorus lituratus | Gorse Shieldbug | 38 | 2020 |
| bug | Pilophorus perplexus | a plantbug or grassbug | 4 | 2015 |
| bug | Pinalitus cervinus | a plantbug or grassbug | 31 | 2021 |
| bug | Pithanus maerkelii | a plantbug or grassbug | 24 | 2020 |
| bug | Plagiognathus (Plagiognathus) arbustorum | a plantbug or grassbug | 113 | 2022 |
| bug | Plagiognathus (Plagiognathus) chrysanthemi | a plantbug or grassbug | 13 | 2021 |
| bug | Plea | a Plea species (unidentified) | 2 | 1991 |
| bug | Plea minutissima | a lesser waterboatman | 68 | 2013 |
| bug | Plinthisus brevipennis | a ground bug | 2 | 1995 |
| bug | Podops inuncta | Turtle Bug | 20 | 2021 |
| bug | Polymerus (Poeciloscytus) palustris | a plantbug or grassbug | 2 | 2021 |
| bug | Populicerus laminatus | a leafhopper | 1 | 2001 |
| bug | Populicerus nitidissimus | a leafhopper | 5 | 2020 |
| bug | Populicerus populi | a leafhopper | 3 | 2021 |
| bug | Psallus | a Psallus species (unidentified) | 6 | 2021 |
| bug | Psallus (Apocremnus) betuleti | a plantbug or grassbug | 2 | 2020 |
| bug | Psallus (Hylopsallus) assimilis | a plantbug or grassbug | 3 | 2016 |
| bug | Psallus (Hylopsallus) perrisi | a plantbug or grassbug | 2 | 2020 |
| bug | Psallus (Hylopsallus) wagneri | a plantbug or grassbug | 2 | 2020 |
| bug | Psallus (Mesopsallus) ambiguus | an insect - true bug (Hemiptera) | 5 | 2021 |
| bug | Psallus (Psallus) confusus | a plantbug or grassbug | 1 | 2018 |
| bug | Psallus (Psallus) falleni | a plantbug or grassbug | 1 | 2021 |
| bug | Psallus (Psallus) flavellus | a plantbug or grassbug | 2 | 1999 |
| bug | Psallus (Psallus) haematodes | a plantbug or grassbug | 3 | 2015 |
| bug | Psallus (Psallus) lepidus | a plantbug or grassbug | 6 | 2020 |
| bug | Psallus (Psallus) varians | a plantbug or grassbug | 25 | 2022 |
| bug | Psammotettix confinis | a leafhopper | 3 | 2009 |
| bug | Pseudococcus longispinus | a mealybug | 1 | 2014 |
| bug | Pseudoloxops coccineus | a plantbug or grassbug | 20 | 2021 |
| bug | Psylla | A jumping plantlouse (unidentified) | 6 | 2016 |
| bug | Psylla buxi | a jumping plantlouse | 2 | 2015 |
| bug | Psyllidae | a Psyllidae species (unidentified) | 2 | 2018 |
| bug | Psyllopsis discrepans | a jumping plantlouse | 1 | 2014 |
| bug | Psyllopsis distinguenda | a jumping plantlouse | 5 | 2002 |
| bug | Psyllopsis fraxini | a jumping plantlouse | 8 | 2021 |
| bug | Psyllopsis fraxinicola | a jumping plantlouse | 1 | 1998 |
| bug | Pulvinaria floccifera | Cottony Camellia Scale | 1 | 2013 |
| bug | Pulvinaria regalis | Horse Chestnut Scale Insect | 2 | 1999 |
| bug | Pyrrhocoris apterus | a firebug | 2 | 2014 |
| caddis fly | Philopotamus | a Philopotamus species (unidentified) | 1 | 2012 |
| caddis fly | Phryganea | a Phryganea caddisfly (unidentified) | 3 | 2000 |
| caddis fly | Phryganea bipunctata | a caddisfly | 1 | 2011 |
| caddis fly | Phryganea grandis | a caddisfly | 8 | 2020 |
| caddis fly | Phryganeidae | a Phyrganeidae caddisfly (unidentified) | 1 | 2015 |
| caddis fly | Plectrocnemia conspersa | a caddisfly | 8 | 2019 |
| caddis fly | Polycentropidae | a Polycentropidae caddisfly (unidentified) | 2 | 1995 |
| caddis fly | Polycentropus | a Polycentropus caddisfly (unidentified) | 6 | 2002 |
| caddis fly | Polycentropus flavomaculatus | a caddisfly | 13 | 2018 |
| caddis fly | Potamophylax cingulatus | a caddisfly | 1 | 2018 |
| caddis fly | Potamophylax latipennis | a caddisfly | 3 | 2018 |
| caddis fly | Psychomyiidae | a Psychomyiidae caddisfly (unidentified) | 6 | 2002 |
| cockroach | Periplaneta americana | American Cockroach | 1 | 1992 |
| cockroach | Periplaneta australasiae | Australian Cockroach | 2 | 2013 |
| comb jelly | Pleurobrachia pileus | a comb jelly (Ctenophora) | 1 | 1940 |
| crustacean | Pacifastacus leniusculus | Signal Crayfish | 72 | 2020 |
| crustacean | Pagurus bernhardus | Hermit crab | 6 | 2003 |
| crustacean | Palaemon adspersus | Baltic Prawn | 2 | 1940 |
| crustacean | Palaemon longirostris | Delta Prawn | 1 | 1939 |
| crustacean | Palaemon serratus | Common Prawn | 2 | 1939 |
| crustacean | Palaemon varians | Grass Shrimp | 8 | 2009 |
| crustacean | Pandalus montagui | Aesop Shrimp | 5 | 1939 |
| crustacean | Pasiphaea sivado | White Glass Shrimp | 2 | 1923 |
| crustacean | Pilumnus hirtellus | Hairy Crab | 1 | 1972 |
| crustacean | Pisidia longicornis | Long Clawed Porcelain Crab | 1 | 1972 |
| crustacean | Praunus flexuosus | a crustacean | 4 | 1939 |
| diatom | Placoneis clementis | a diatom | 1 | 2015 |
| diatom | Pseudostaurosira brevistriata | a diatom | 2 | 2015 |
| dragonfly, hawker or damselfly | Platycnemis pennipes | White-legged Damselfly | 784 | 2021 |
| dragonfly, hawker or damselfly | Pyrrhosoma nymphula | Large Red Damselfly | 2895 | 2022 |
| false scorpion | Pseudoscorpiones | a Pseudoscorpiones species (unidentified) | 1 | 2017 |
| fish | Pagellus bogaraveo | Red Sea Bream | 2 | 1879 |
| fish | Parablennius gattorugine | Tompot Blenny | 2 | 1938 |
| fish | Pegusa lascaris | Sand Sole | 3 | 1940 |
| fish | Perca fluviatilis | Perch | 53 | 2019 |
| fish | Petromyzon marinus | Sea Lamprey | 4 | 2009 |
| fish | Phoxinus phoxinus | Minnow | 79 | 2018 |
| fish | Phoxinus phoxinus or Gasterosteidae sp. | Minnow or stickleback (unidentified) | 2 | 2011 |
| fish | Phycis blennoides | Greater Forkbeard | 2 | 1938 |
| fish | Pisces | a fish (unidentified) | 182 | 2018 |
| fish | Platichthys flesus | Flounder | 9 | 2016 |
| fish | Pleuronectes platessa | Plaice | 3 | 2010 |
| fish | Pollachius pollachius | Pollack | 1 | 1879 |
| fish | Pollachius virens | Saithe | 1 | 1902 |
| fish | Pomatoschistus microps | Common Goby | 1 | 1879 |
| fish | Pomatoschistus minutus | Sand Goby | 3 | 1939 |
| fish | Pomatoschistus pictus | Painted Goby | 1 | 1879 |
| fish | Pungitius pungitius | Ten-spined Stickleback | 108 | 2013 |
| fungus | Panaeolina foenisecii | Brown Mottlegill | 256 | 2021 |
| fungus | Panaeolus | a Panaeolus species (unidentified) | 1 | 2011 |
| fungus | Panaeolus acuminatus | an agaric | 128 | 2020 |
| fungus | Panaeolus cinctulus | an agaric | 18 | 2010 |
| fungus | Panaeolus fimicola | Turf Mottlegill | 99 | 2020 |
| fungus | Panaeolus olivaceus | an agaric | 22 | 2014 |
| fungus | Panaeolus papilionaceus | a fungus | 18 | 2018 |
| fungus | Panaeolus papilionaceus var. papilionaceus | Petticoat Mottlegill | 116 | 2017 |
| fungus | Panaeolus semiovatus | Egghead Mottlegill | 2 | 2005 |
| fungus | Panaeolus semiovatus var. phalenarum | an agaric | 1 | 2008 |
| fungus | Panaeolus semiovatus var. semiovatus | an agaric | 23 | 2007 |
| fungus | Panellus mitis | a basidiomycete fungus | 3 | 1998 |
| fungus | Panellus stipticus | a basidiomycete fungus | 16 | 2014 |
| fungus | Panus conchatus | a basidiomycete fungus | 2 | 2014 |
| fungus | Parasola | a Parasola species (unidentified) | 1 | 2017 |
| fungus | Parasola auricoma | an agaric | 36 | 2010 |
| fungus | Parasola conopilea | Conical Brittlestem | 117 | 2018 |
| fungus | Parasola galericuliformis | an agaric | 6 | 1999 |
| fungus | Parasola hemerobia | an agaric | 2 | 2002 |
| fungus | Parasola hercules | a fungus | 1 | 2012 |
| fungus | Parasola kuehneri | a fungus | 13 | 2020 |
| fungus | Parasola leiocephala | an agaric | 75 | 2014 |
| fungus | Parasola misera | an agaric | 4 | 2020 |
| fungus | Parasola plicatilis | Pleated Parasol | 116 | 2020 |
| fungus | Parasola schroeteri | an agaric | 7 | 2014 |
| fungus | Paurocotylis pila | a fungus | 1 | 2022 |
| fungus | Paxillus filamentosus | a bolete | 1 | 1999 |
| fungus | Paxillus involutus | Brown Roll-rim | 85 | 2018 |
| fungus | Penicillium brevicompactum | a fungus | 1 | 2013 |
| fungus | Penicillium vulpinum | a fungus | 1 | 2007 |
| fungus | Peniophora | a Peniophora species (unidentified) | 1 | 1970 |
| fungus | Peniophora cinerea | a basidiomycete fungus | 36 | 2017 |
| fungus | Peniophora incarnata | a basidiomycete fungus | 6 | 2017 |
| fungus | Peniophora limitata | a basidiomycete fungus | 34 | 2020 |
| fungus | Peniophora lycii | a basidiomycete fungus | 92 | 2013 |
| fungus | Peniophora nuda | a basidiomycete fungus | 5 | 2010 |
| fungus | Peniophora quercina | a basidiomycete fungus | 65 | 2017 |
| fungus | Peniophora rufomarginata | a basidiomycete fungus | 6 | 2000 |
| fungus | Peniophora violaceolivida | a basidiomycete fungus | 2 | 2012 |
| fungus | Peniophorella praetermissa | a basidiomycete fungus | 2 | 2008 |
| fungus | Peniophorella pubera | a basidiomycete fungus | 5 | 2008 |
| fungus | Periconia cookei | a fungus | 1 | 1994 |
| fungus | Peronospora conglomerata | an oomycete fungus | 2 | 2008 |
| fungus | Peronospora dipsaci | an oomycete fungus | 1 | 1998 |
| fungus | Peronospora farinosa | an oomycete fungus | 1 | 1999 |
| fungus | Peronospora gei | an oomycete fungus | 1 | 2011 |
| fungus | Peronospora grisea | an oomycete fungus | 1 | 2008 |
| fungus | Peronospora myosotidis | an oomycete fungus | 3 | 1998 |
| fungus | Peronospora oerteliana | an oomycete fungus | 1 | 2011 |
| fungus | Peronospora sordida | an oomycete fungus | 1 | 1997 |
| fungus | Peronospora violae | an oomycete fungus | 1 | 2014 |
| fungus | Peziza ampliata | a fungus | 1 | 2013 |
| fungus | Peziza badia | a fungus | 3 | 1997 |
| fungus | Peziza cerea | a fungus | 6 | 2020 |
| fungus | Peziza domiciliana | a fungus | 1 | 2007 |
| fungus | Peziza echinospora | a fungus | 4 | 2014 |
| fungus | Peziza granulosa | a fungus | 3 | 2012 |
| fungus | Peziza limnaea | a fungus | 2 | 1999 |
| fungus | Peziza micropus | a fungus | 8 | 2014 |
| fungus | Peziza petersii | a fungus | 2 | 2010 |
| fungus | Peziza repanda | a fungus | 5 | 2014 |
| fungus | Peziza saniosa | a fungus | 1 | 1999 |
| fungus | Peziza succosa | a fungus | 16 | 2012 |
| fungus | Peziza varia | a fungus | 1 | 2013 |
| fungus | Peziza vesiculosa | a fungus | 11 | 2015 |
| fungus | Pezizella discreta | an ascomycete fungus | 1 | 1997 |
| fungus | Phacidium lauri | an ascomycete fungus | 6 | 2020 |
| fungus | Phaeangella ventosa | an ascomycete fungus | 2 | 2005 |
| fungus | Phaeohelotium epiphyllum | an ascomycete fungus | 2 | 2013 |
| fungus | Phaeoisaria clavulata | a fungus | 1 | 2013 |
| fungus | Phaeolus schweinitzii | Dyer's Mazegill | 9 | 2018 |
| fungus | Phallus impudicus | a fungus | 20 | 2021 |
| fungus | Phallus impudicus var. impudicus | Stinkhorn | 92 | 2018 |
| fungus | Phanerochaete sordida | a basidiomycete fungus | 3 | 1999 |
| fungus | Phanerochaete velutina | a basidiomycete fungus | 3 | 2001 |
| fungus | Phellinus | a Phellinus species (unidentified) | 2 | 2015 |
| fungus | Phellinus igniarius | a basidiomycete fungus | 3 | 1999 |
| fungus | Phellinus pomaceus | Cushion Bracket | 11 | 2020 |
| fungus | Phlebia livida | a basidiomycete fungus | 2 | 2008 |
| fungus | Phlebia radiata | a basidiomycete fungus | 35 | 2018 |
| fungus | Phlebia rufa | a basidiomycete fungus | 8 | 2013 |
| fungus | Phlebia tremellosa | Jelly Rot | 13 | 2020 |
| fungus | Phlebiella sulphurea | a basidiomycete fungus | 1 | 1987 |
| fungus | Phleogena faginea | a basidiomycete fungus | 1 | 2020 |
| fungus | Phlyctis argena | an ascomycete fungus | 23 | 2020 |
| fungus | Pholiota abstrusa | an agaric | 2 | 2000 |
| fungus | Pholiota alnicola | Alder Scalycap | 2 | 2005 |
| fungus | Pholiota aurivella | a fungus | 4 | 2013 |
| fungus | Pholiota conissans | an agaric | 3 | 2000 |
| fungus | Pholiota flammans | an agaric | 1 | 2006 |
| fungus | Pholiota gummosa | Sticky Scalycap | 18 | 2018 |
| fungus | Pholiota highlandensis | Charcoal Pholiota | 8 | 2014 |
| fungus | Pholiota limonella | an agaric | 2 | 2001 |
| fungus | Pholiota squarrosa | Shaggy Pholiota | 27 | 2014 |
| fungus | Pholiota tuberculosa | an agaric | 4 | 2004 |
| fungus | Phragmidium bulbosum | a rust | 1 | 2008 |
| fungus | Phragmidium fragariae | a rust | 1 | 2017 |
| fungus | Phragmidium mucronatum | a rust | 3 | 2021 |
| fungus | Phragmidium rubi-idaei | a rust | 3 | 2007 |
| fungus | Phragmidium sanguisorbae | a rust | 7 | 2018 |
| fungus | Phragmidium violaceum | Violet Bramble Rust | 98 | 2020 |
| fungus | Phyllachora dactylidis | an ascomycete fungus | 2 | 2008 |
| fungus | Phyllactinia fraxini | a conidial powdery mildew | 5 | 2008 |
| fungus | Phyllactinia guttata | a conidial powdery mildew | 7 | 2014 |
| fungus | Phylloporia ribis | a basidiomycete fungus | 2 | 2003 |
| fungus | Physisporinus sanguinolentus | Bleeding Porecrust | 7 | 2013 |
| fungus | Physisporinus vitreus | a basidiomycete fungus | 3 | 2012 |
| fungus | Pilobolus crystallinus | a zygomycete fungus | 1 | 2014 |
| fungus | Piptoporus betulinus | Birch Polypore | 123 | 2019 |
| fungus | Piptoporus quercinus | Oak Polypore | 3 | 2014 |
| fungus | Plasmopara crustosa | an oomycete fungus | 1 | 2008 |
| fungus | Plasmopara epilobii | an oomycete fungus | 3 | 2011 |
| fungus | Plasmopara ribicola | an oomycete fungus | 1 | 1999 |
| fungus | Plasmoverna pygmaea | an oomycete fungus | 1 | 2011 |
| fungus | Plenodomus agnitus | a fungus | 2 | 1997 |
| fungus | Pleurotus cornucopiae | a basidiomycete fungus | 37 | 2012 |
| fungus | Pleurotus dryinus | Veiled Oyster Mushroom | 14 | 2015 |
| fungus | Pleurotus ostreatus | Oyster Mushroom | 75 | 2020 |
| fungus | Pleurotus pulmonarius | a basidiomycete fungus | 21 | 2014 |
| fungus | Pluteus atromarginatus | a basidiomycete fungus | 1 | 2013 |
| fungus | Pluteus aurantiorugosus | a basidiomycete fungus | 4 | 2015 |
| fungus | Pluteus cervinus | Fawn Pluteus | 145 | 2020 |
| fungus | Pluteus chrysophaeus | a basidiomycete fungus | 21 | 2014 |
| fungus | Pluteus cinereofuscus | a basidiomycete fungus | 4 | 2014 |
| fungus | Pluteus diettrichii | a basidiomycete fungus | 1 | 2012 |
| fungus | Pluteus ephebeus | a basidiomycete fungus | 17 | 2013 |
| fungus | Pluteus exiguus | a basidiomycete fungus | 2 | 2006 |
| fungus | Pluteus griseoluridus | a basidiomycete fungus | 7 | 2004 |
| fungus | Pluteus hispidulus | a basidiomycete fungus | 4 | 2013 |
| fungus | Pluteus inquilinus | a fungus | 2 | 2007 |
| fungus | Pluteus leoninus | a basidiomycete fungus | 1 | 2005 |
| fungus | Pluteus luctuosus | a basidiomycete fungus | 5 | 2013 |
| fungus | Pluteus nanus | a fungus | 27 | 2020 |
| fungus | Pluteus pellitus | a basidiomycete fungus | 1 | 2010 |
| fungus | Pluteus petasatus | a basidiomycete fungus | 1 | 2020 |
| fungus | Pluteus phlebophorus | a basidiomycete fungus | 30 | 2012 |
| fungus | Pluteus plautus | a basidiomycete fungus | 21 | 2010 |
| fungus | Pluteus podospileus | a basidiomycete fungus | 13 | 2014 |
| fungus | Pluteus pouzarianus | a fungus | 4 | 2014 |
| fungus | Pluteus romellii | a basidiomycete fungus | 12 | 2014 |
| fungus | Pluteus salicinus | a basidiomycete fungus | 79 | 2014 |
| fungus | Pluteus semibulbosus | a basidiomycete fungus | 1 | 1999 |
| fungus | Pluteus thomsonii | a basidiomycete fungus | 17 | 2012 |
| fungus | Pluteus umbrosus | a basidiomycete fungus | 9 | 2014 |
| fungus | Pocheina rosea | an acrasiomycete fungus | 1 | 2008 |
| fungus | Podosphaera aphanis | a conidial powdery mildew | 3 | 2013 |
| fungus | Podosphaera clandestina | a conidial powdery mildew | 1 | 2011 |
| fungus | Podosphaera epilobii | a conidial powdery mildew | 4 | 2011 |
| fungus | Podosphaera fusca | a conidial powdery mildew | 5 | 2013 |
| fungus | Podosphaera pannosa | a conidial powdery mildew | 5 | 2013 |
| fungus | Podosphaera spiraeae | a conidial powdery mildew | 2 | 2011 |
| fungus | Podosphaera xanthii | a conidial powdery mildew | 1 | 1999 |
| fungus | Polycoccum | a Polycoccum species (unidentified) | 1 | 2010 |
| fungus | Polydesmia pruinosa | an ascomycete fungus | 13 | 2014 |
| fungus | Polyporaceae | a Polyporaceae species (unidentified) | 2 | 2018 |
| fungus | Polyporus | a Polyporus species (unidentified) | 2 | 2018 |
| fungus | Polyporus badius | a fungus | 56 | 2014 |
| fungus | Polyporus ciliatus | a basidiomycete fungus | 6 | 2005 |
| fungus | Polyporus leptocephalus | a basidiomycete fungus | 96 | 2015 |
| fungus | Polyporus squamosus | Dryad's Saddle | 170 | 2019 |
| fungus | Polyporus tuberaster | a basidiomycete fungus | 41 | 2019 |
| fungus | Postia caesia | a basidiomycete fungus | 23 | 2014 |
| fungus | Postia stiptica | a basidiomycete fungus | 13 | 2010 |
| fungus | Postia subcaesia | a basidiomycete fungus | 72 | 2020 |
| fungus | Postia tephroleuca | a basidiomycete fungus | 4 | 2013 |
| fungus | Propolis farinosa | an ascomycete fungus | 1 | 1998 |
| fungus | Prosthecium pyriforme | a fungus | 1 | 1987 |
| fungus | Protoglossum niveum | a fungus | 2 | 2008 |
| fungus | Protomyces macrosporus | an ascomycete fungus | 1 | 2008 |
| fungus | Psathyrella | a Psathyrella agaric (unidentified) | 5 | 2011 |
| fungus | Psathyrella artemisiae | an agaric | 1 | 2000 |
| fungus | Psathyrella badiophylla var. neglecta | a fungus | 1 | 2004 |
| fungus | Psathyrella bipellis | an agaric | 2 | 2013 |
| fungus | Psathyrella candolleana | Pale Brittlestem | 182 | 2022 |
| fungus | Psathyrella canoceps | an agaric | 2 | 2004 |
| fungus | Psathyrella cernua | an agaric | 1 | 1991 |
| fungus | Psathyrella clivensis | an agaric | 23 | 2014 |
| fungus | Psathyrella corrugis | an agaric | 117 | 2020 |
| fungus | Psathyrella fatua | an agaric | 3 | 2003 |
| fungus | Psathyrella fulvescens | a fungus | 3 | 2010 |
| fungus | Psathyrella gossypina | an agaric | 1 | 1996 |
| fungus | Psathyrella gracillima | a fungus | 1 | 2014 |
| fungus | Psathyrella hirta | an agaric | 4 | 2008 |
| fungus | Psathyrella leucotephra | an agaric | 14 | 2014 |
| fungus | Psathyrella longicauda | an agaric | 2 | 2001 |
| fungus | Psathyrella lutensis | an agaric | 5 | 2013 |
| fungus | Psathyrella microrhiza | an agaric | 77 | 2014 |
| fungus | Psathyrella multipedata | an agaric | 15 | 2011 |
| fungus | Psathyrella narcotica | a fungus | 3 | 2010 |
| fungus | Psathyrella noli-tangere | an agaric | 3 | 2007 |
| fungus | Psathyrella obtusata | a fungus | 2 | 2013 |
| fungus | Psathyrella obtusata var. aberrans | a fungus | 1 | 2005 |
| fungus | Psathyrella obtusata var. obtusata | an agaric | 9 | 2004 |
| fungus | Psathyrella olympiana | a fungus | 5 | 2009 |
| fungus | Psathyrella orbitarum | a fungus | 4 | 2009 |
| fungus | Psathyrella piluliformis | an agaric | 51 | 2014 |
| fungus | Psathyrella potteri | an agaric | 2 | 1987 |
| fungus | Psathyrella prona | an agaric | 29 | 2012 |
| fungus | Psathyrella pseudocorrugis | an agaric | 1 | 2014 |
| fungus | Psathyrella pseudogracilis | an agaric | 6 | 2020 |
| fungus | Psathyrella pygmaea | an agaric | 4 | 2008 |
| fungus | Psathyrella saponacea | an agaric | 2 | 1988 |
| fungus | Psathyrella senex | an agaric | 5 | 2002 |
| fungus | Psathyrella spadicea | an agaric | 5 | 2014 |
| fungus | Psathyrella spadiceogrisea | an agaric | 124 | 2020 |
| fungus | Psathyrella tephrophylla | an agaric | 33 | 2015 |
| fungus | Psathyrella typhae | an agaric | 1 | 2007 |
| fungus | Psathyrella vinosofulva | an agaric | 3 | 2012 |
| fungus | Pseudobaeospora | a Pseudobaeospora species (unidentified) | 2 | 2008 |
| fungus | Pseudoboletus parasiticus | a bolete | 2 | 1990 |
| fungus | Pseudoclitocybe cyathiformis | Goblet (The) | 54 | 2012 |
| fungus | Pseudoclitocybe expallens | a basidiomycete fungus | 1 | 2008 |
| fungus | Pseudocraterellus undulatus | a chantarelle | 14 | 2001 |
| fungus | Pseudohydnum gelatinosum | Jelly Tongue | 1 | 2009 |
| fungus | Pseudoinonotus dryadeus | a basidiomycete fungus | 22 | 2022 |
| fungus | Pseudoperonospora urticae | an oomycete fungus | 1 | 2003 |
| fungus | Pseudopeziza trifolii | an ascomycete fungus | 1 | 1997 |
| fungus | Psilachnum chrysostigmum | an ascomycete fungus | 3 | 2014 |
| fungus | Psilocybe apelliculosa | an agaric | 2 | 1988 |
| fungus | Psilocybe bullacea | an agaric | 1 | 1989 |
| fungus | Psilocybe coprophila | an agaric | 13 | 2006 |
| fungus | Psilocybe crobula | an agaric | 2 | 2009 |
| fungus | Psilocybe inquilina | an agaric | 2 | 2003 |
| fungus | Psilocybe merdaria | an agaric | 2 | 2008 |
| fungus | Psilocybe merdicola | an agaric | 2 | 1997 |
| fungus | Psilocybe montana | an agaric | 29 | 2009 |
| fungus | Psilocybe semilanceata | Liberty Cap | 45 | 2020 |
| fungus | Psilocybe subviscida | a fungus | 1 | 2012 |
| fungus | Psilocybe subviscida var. subviscida | a fungus | 19 | 2010 |
| fungus | Psilocybe subviscida var. velata | an agaric | 2 | 1990 |
| fungus | Pterula caricis-pendulae | a chantarelle | 3 | 2008 |
| fungus | Pterula multifida | a chantarelle | 1 | 2013 |
| fungus | Puccinia | a rust (unidentified) | 2 | 2012 |
| fungus | Puccinia adoxae | a rust | 4 | 2016 |
| fungus | Puccinia arenariae | a rust | 2 | 1999 |
| fungus | Puccinia betonicae | a rust | 2 | 2019 |
| fungus | Puccinia bistortae | a rust | 2 | 1998 |
| fungus | Puccinia brachypodii var. brachypodii | a rust | 8 | 2010 |
| fungus | Puccinia buxi | a rust | 15 | 2018 |
| fungus | Puccinia calcitrapae | a rust | 2 | 2010 |
| fungus | Puccinia caricina var. caricina | a rust | 6 | 2013 |
| fungus | Puccinia caricina var. ribesii-pendulae | a rust | 5 | 2014 |
| fungus | Puccinia circaeae | a rust | 6 | 2013 |
| fungus | Puccinia coronata | a rust | 8 | 2011 |
| fungus | Puccinia glechomatis | a rust | 5 | 2012 |
| fungus | Puccinia graminis | a rust | 1 | 2009 |
| fungus | Puccinia graminis subsp. graminis | a rust | 8 | 2009 |
| fungus | Puccinia hieracii var. hieracii | a rust | 5 | 2008 |
| fungus | Puccinia hysterium | a rust | 3 | 2020 |
| fungus | Puccinia iridis | a rust | 1 | 2020 |
| fungus | Puccinia lagenophorae | Daisy Rust | 14 | 2020 |
| fungus | Puccinia lapsanae | a rust | 6 | 2020 |
| fungus | Puccinia magnusiana | a rust | 1 | 2005 |
| fungus | Puccinia malvacearum | Mallow Rust | 11 | 2020 |
| fungus | Puccinia menthae | a rust | 3 | 2012 |
| fungus | Puccinia obscura | a rust | 1 | 2020 |
| fungus | Puccinia oxalidis | a rust | 1 | 2020 |
| fungus | Puccinia pelargonii-zonalis | a rust | 1 | 2020 |
| fungus | Puccinia phragmitis | a rust | 3 | 1999 |
| fungus | Puccinia poarum | a rust | 3 | 2010 |
| fungus | Puccinia polygoni-amphibii var. polygoni-amphibii | a fungus | 1 | 1999 |
| fungus | Puccinia porri | a rust | 4 | 2020 |
| fungus | Puccinia pulverulenta | a rust | 12 | 2022 |
| fungus | Puccinia punctata | a rust | 1 | 2008 |
| fungus | Puccinia punctiformis | a rust | 6 | 2012 |
| fungus | Puccinia sessilis | a rust | 29 | 2022 |
| fungus | Puccinia smyrnii | Alexanders Rust | 5 | 2020 |
| fungus | Pucciniastrum agrimoniae | a rust | 2 | 2021 |
| fungus | Pucciniastrum circaeae | a rust | 2 | 2008 |
| fungus | Pucciniastrum epilobii | a rust | 3 | 2008 |
| fungus | Puccinia urticata | a fungus | 3 | 2020 |
| fungus | Puccinia variabilis | a rust | 2 | 1999 |
| fungus | Puccinia vincae | a rust | 1 | 2020 |
| fungus | Puccinia violae | a rust | 6 | 2014 |
| fungus | Pyrenopeziza petiolaris | an ascomycete fungus | 3 | 1997 |
| fungus | Pyrenopeziza plicata | an ascomycete fungus | 1 | 2010 |
| fungus | Pyrenopeziza revincta | an ascomycete fungus | 10 | 2010 |
| grasshopper, cricket or true cricket | Pholidoptera griseoaptera | Dark Bush Cricket | 947 | 2022 |
| harvestman | Paroligolophus agrestis | a harvestman | 17 | 2020 |
| harvestman | Paroligolophus meadii | a harvestman | 3 | 1999 |
| harvestman | Phalangiidae | a Phalangiidae species (unidentified) | 2 | 2011 |
| harvestman | Phalangium opilio | a harvestman | 26 | 2017 |
| harvestman | Platybunus triangularis | a harvestman | 26 | 2019 |
| hornwort | Phaeoceros laevis | Smooth Hornwort | 1 | 1987 |
| leech, flatworm or ribbon worm | Piscicola geometra | a leech | 8 | 2018 |
| leech, flatworm or ribbon worm | Planaria | a Planaria flatworm (unidentified) | 5 | 2013 |
| leech, flatworm or ribbon worm | Planaria torva | a flatworm | 4 | 2007 |
| leech, flatworm or ribbon worm | Planariidae | a Planariidae flatworm (unidentified) | 22 | 2018 |
| leech, flatworm or ribbon worm | Platyhelminthes | a Platyhelminthes flatworm (unidentified) | 35 | 2018 |
| leech, flatworm or ribbon worm | Polycelis | a Polycelis flatworm (unidentified) | 16 | 2019 |
| leech, flatworm or ribbon worm | Polycelis nigra | a flatworm | 7 | 2020 |
| leech, flatworm or ribbon worm | Polycelis tenuis | a flatworm | 12 | 2018 |
| lichen | Pachnolepia pruinata | a lichen | 1 | 2002 |
| lichen | Parmelia | a Parmelia species (unidentified) | 1 | 2014 |
| lichen | Parmelia saxatilis s. lat. | a lichen | 30 | 2020 |
| lichen | Parmelia sulcata | Netted Shield Lichen | 67 | 2020 |
| lichen | Parmelina pastillifera | a lichen | 2 | 1998 |
| lichen | Parmeliopsis ambigua | a lichen | 1 | 1975 |
| lichen | Parmotrema crinitum | a lichen | 1 | 2005 |
| lichen | Parmotrema perlatum | Sea-storm Lichen | 29 | 2020 |
| lichen | Peltigera | a Peltigera lichen (unidentified) | 3 | 2016 |
| lichen | Peltigera canina | Dog Lichen | 6 | 2011 |
| lichen | Peltigera didactyla | a lichen | 2 | 2011 |
| lichen | Peltigera horizontalis | a lichen | 2 | 2007 |
| lichen | Peltigera hymenina | a lichen | 8 | 2020 |
| lichen | Peltigera membranacea | a lichen | 3 | 2016 |
| lichen | Peltigera polydactylon | a lichen | 1 | 1975 |
| lichen | Peltigera praetextata | a lichen | 2 | 2018 |
| lichen | Peltigera rufescens | a lichen | 8 | 2018 |
| lichen | Pertusaria albescens var. albescens | a lichen | 9 | 2011 |
| lichen | Pertusaria albescens var. corallina | a lichen | 4 | 2016 |
| lichen | Pertusaria amara | Bitter Wart Lichen | 3 | 1985 |
| lichen | Pertusaria amara f. amara | a lichen | 12 | 2010 |
| lichen | Pertusaria coccodes | a lichen | 4 | 1998 |
| lichen | Pertusaria flavida | a lichen | 2 | 1996 |
| lichen | Pertusaria hymenea | a lichen | 3 | 2005 |
| lichen | Pertusaria leioplaca | a lichen | 6 | 2020 |
| lichen | Pertusaria multipuncta | a lichen | 1 | 1975 |
| lichen | Pertusaria pertusa | a lichen | 16 | 2017 |
| lichen | Petractis clausa | a lichen | 5 | 2018 |
| lichen | Phaeographis dendritica | a lichen | 2 | 2012 |
| lichen | Phaeographis smithii | a lichen | 1 | 2008 |
| lichen | Phaeophyscia nigricans | a lichen | 1 | 2011 |
| lichen | Phaeophyscia orbicularis | a lichen | 38 | 2020 |
| lichen | Physcia | a Physcia species (unidentified) | 1 | 2015 |
| lichen | Physcia adscendens | a lichen | 60 | 2020 |
| lichen | Physcia aipolia | a lichen | 28 | 2020 |
| lichen | Physcia caesia | a lichen | 12 | 2014 |
| lichen | Physcia dubia | a lichen | 1 | 1985 |
| lichen | Physcia tenella | a lichen | 55 | 2020 |
| lichen | Physconia | a Physconia species (unidentified) | 1 | 2014 |
| lichen | Physconia distorta | a lichen | 1 | 2010 |
| lichen | Physconia grisea | a lichen | 14 | 2020 |
| lichen | Placidium lachneum | a lichen | 1 | 1975 |
| lichen | Placidium pilosellum | a lichen | 2 | 2018 |
| lichen | Placidium squamulosum | a lichen | 5 | 2010 |
| lichen | Placopyrenium canellum | a lichen | 3 | 2016 |
| lichen | Placopyrenium fuscellum | a lichen | 4 | 2020 |
| lichen | Placynthiella icmalea | a lichen | 2 | 2011 |
| lichen | Placynthium nigrum | a lichen | 16 | 2020 |
| lichen | Placynthium subradiatum | a lichen | 1 | 1991 |
| lichen | Platismatia glauca | a lichen | 10 | 2008 |
| lichen | Pleurosticta acetabulum | a lichen | 1 | 2013 |
| lichen | Polyblastia albida | a lichen | 1 | 2018 |
| lichen | Polysporina simplex | a lichen | 4 | 2014 |
| lichen | Porina aenea | a lichen | 3 | 2012 |
| lichen | Porina chlorotica f. chlorotica | a lichen | 4 | 2012 |
| lichen | Porina linearis | a lichen | 11 | 2018 |
| lichen | Porina rosei | a lichen | 2 | 2005 |
| lichen | Porpidia platycarpoides | a lichen | 1 | 1985 |
| lichen | Porpidia soredizodes | a lichen | 10 | 2004 |
| lichen | Porpidia tuberculosa | a lichen | 20 | 2020 |
| lichen | Protoblastenia calva | a lichen | 5 | 2018 |
| lichen | Protoblastenia cyclospora | a lichen | 2 | 1899 |
| lichen | Protoblastenia incrustans | a lichen | 4 | 2018 |
| lichen | Protoblastenia rupestris | a lichen | 47 | 2020 |
| lichen | Pseudoschismatomma rufescens | a lichen | 2 | 2005 |
| lichen | Psilolechia leprosa | a lichen | 1 | 1998 |
| lichen | Psilolechia lucida | a lichen | 5 | 2020 |
| lichen | Psoroglaena abscondita | a lichen | 1 | 1991 |
| lichen | Punctelia | a Punctelia species (unidentified) | 1 | 2019 |
| lichen | Punctelia borreri | a lichen | 3 | 2020 |
| lichen | Punctelia jeckeri | a lichen | 15 | 2016 |
| lichen | Punctelia subrudecta s. lat. | a lichen | 28 | 2020 |
| lichen | Pyrenula macrospora | a lichen | 3 | 2005 |
| lichen | Pyrrhospora quernea | a lichen | 5 | 2011 |
| liverwort | Pellia | a Pellia liverwort (unidentified) | 5 | 2008 |
| liverwort | Pellia endiviifolia | Endive Pellia | 35 | 2021 |
| liverwort | Pellia epiphylla | Overleaf Pellia | 13 | 2019 |
| liverwort | Plagiochila asplenioides | Greater Featherwort | 71 | 2020 |
| liverwort | Plagiochila porelloides | Lesser Featherwort | 21 | 2020 |
| liverwort | Plagiochila spinulosa | Prickly Featherwort | 2 | 1990 |
| liverwort | Porella arboris-vitae | Bitter Scalewort | 5 | 2019 |
| liverwort | Porella platyphylla | Wall Scalewort | 47 | 2021 |
| liverwort | Ptilidium pulcherrimum | Tree Fringewort | 1 | 1963 |
| mammal - bat | Pipistrellus | a Pipistrelle (unidentified) | 169 | 2022 |
| mammal - bat | Pipistrellus nathusii | Nathusius' Pipistrelle | 67 | 2021 |
| mammal - bat | Pipistrellus pipistrellus (sensu lato) | Pipistrelle (45 or 55kHz) | 839 | 2022 |
| mammal - bat | Pipistrellus pipistrellus (sensu stricto) | Common Pipistrelle | 1624 | 2022 |
| mammal - bat | Pipistrellus pygmaeus | Soprano Pipistrelle (55kHz) | 982 | 2022 |
| mammal - bat | Plecotus | a Brown Long-eared or Grey Long-eared or other Plecotus bat (unidentified) | 71 | 2019 |
| mammal - bat | Plecotus auritus | Brown Long-eared Bat | 565 | 2021 |
| mammal - bat | Plecotus austriacus | Grey Long-eared Bat | 2 | 2015 |
| mammal - marine | Pagophilus groenlandicus | Harp Seal | 1 | 1836 |
| mammal - marine | Phoca vitulina | Common Seal | 4 | 2005 |
| mammal - marine | Phocoena phocoena | Common Porpoise | 27 | 2020 |
| mammal - marine | Pinnipedia | a seal (unidentified) | 2 | 1939 |
| mammal - marine | Pusa hispida | Ringed Seal | 1 | 1828 |
| mayfly | Paraleptophlebia | a Paraleptophlebia mayfly (unidentified) | 2 | 1990 |
| millipede | Polydesmidae | a Polydesmidae species (unidentified) | 2 | 2017 |
| millipede | Polydesmus | a Polydesmus flat-back millipede (unidentified) | 8 | 2019 |
| millipede | Polydesmus angustus | Common Flat-backed Millipede | 15 | 2020 |
| millipede | Polydesmus coriaceus | a flat-back millipede | 1 | 2019 |
| millipede | Polyxenus lagurus | Bristly Millipede | 1 | 2017 |
| millipede | Proteroiulus fuscus | Snake Millipede | 6 | 2014 |
| mollusc | Paralaoma servilis | a mollusc | 3 | 2010 |
| mollusc | Patella | a limpet (unidentified) | 17 | 2019 |
| mollusc | Patella ulyssiponensis | China Limpet | 1 | 1938 |
| mollusc | Patella vulgata | Common Limpet | 25 | 2019 |
| mollusc | Peringia ulvae | Laver Spire Shell | 16 | 2002 |
| mollusc | Phenacolimax major | Greater Pellucid Glass Snail | 4 | 2020 |
| mollusc | Pholas dactylus | Common Piddock | 1 | 1976 |
| mollusc | Physa | a Physa species (unidentified) | 23 | 2013 |
| mollusc | Physa fontinalis | Common Bladder Snail | 114 | 2013 |
| mollusc | Physella | a Physella species (unidentified) | 1 | 2010 |
| mollusc | Physella acuta | a bladder snail | 37 | 2018 |
| mollusc | Physidae | a Physidae species (unidentified) | 29 | 2012 |
| mollusc | Pisidium | a pea mussel (unidentified) | 119 | 2016 |
| mollusc | Pisidium amnicum | a pea mussel | 2 | 2008 |
| mollusc | Planorbarius corneus | Great Ramshorn Snail | 319 | 2019 |
| mollusc | Planorbidae | a ramshorn snail (unidentified) | 62 | 2019 |
| mollusc | Planorbis | a Planorbis ramshorn snail (unidentified) | 33 | 2013 |
| mollusc | Planorbis carinatus | Keeled Ramshorn | 58 | 2016 |
| mollusc | Planorbis planorbis | Margined Ramshorn | 285 | 2013 |
| mollusc | Pomatias elegans | Round-mouthed Snail | 97 | 2020 |
| mollusc | Potamopyrgus | a Potamopyrgus species (unidentified) | 2 | 2007 |
| mollusc | Potamopyrgus antipodarum | Jenkins' Spire Snail | 92 | 2018 |
| mollusc | Propebela rufa | a mollusc | 2 | 1996 |
| mollusc | Pseudanodonta complanata | Depressed River Mussel | 1 | 2019 |
| mollusc | Pulmonata | a Pulmonata species (unidentified) | 1 | 2018 |
| mollusc | Punctum (Punctum) pygmaeum | Dwarf Snail | 15 | 2018 |
| mollusc | Pupilla (Pupilla) muscorum | Moss Snail | 7 | 2020 |
| mollusc | Pyramidula umbilicata | Rock Snail | 8 | 1999 |
| moss | Palustriella commutata | Curled Hook-moss | 3 | 2020 |
| moss | Phascum cuspidatum | Cuspidate Earth-moss | 18 | 2021 |
| moss | Plagiomnium | a Plagiomnium species (unidentified) | 1 | 2009 |
| moss | Plagiomnium affine | Many-fruited Thyme-moss | 24 | 2021 |
| moss | Plagiomnium cuspidatum | Woodsy Thyme-moss | 1 | 1991 |
| moss | Plagiomnium elatum | Tall Thyme-moss | 4 | 2012 |
| moss | Plagiomnium rostratum | Long-beaked Thyme-moss | 16 | 2021 |
| moss | Plagiomnium undulatum | Hart's-tongue Thyme-moss | 114 | 2021 |
| moss | Plagiothecium curvifolium | Curved Silk-moss | 1 | 2000 |
| moss | Plagiothecium denticulatum | Dented Silk-moss | 4 | 2011 |
| moss | Plagiothecium denticulatum var. denticulatum | a moss | 3 | 2013 |
| moss | Plagiothecium latebricola | Alder Silk-moss | 3 | 2015 |
| moss | Plagiothecium nemorale | Woodsy Silk-moss | 25 | 2019 |
| moss | Plagiothecium succulentum | Juicy Silk-moss | 13 | 2021 |
| moss | Plagiothecium undulatum | Waved Silk-moss | 6 | 2022 |
| moss | Plasteurhynchium striatulum | Lesser Striated Feather-moss | 9 | 2006 |
| moss | Platyhypnidium riparioides | Long-beaked Water Feather-moss | 14 | 2021 |
| moss | Pleuridium acuminatum | Taper-leaved Earth-moss | 4 | 2021 |
| moss | Pleuridium subulatum | Awl-leaved Earth-moss | 1 | 2017 |
| moss | Pleurochaete squarrosa | Side-fruited Crisp-moss | 7 | 2010 |
| moss | Pleurozium schreberi | Red-stemmed Feather-moss | 1 | 1998 |
| moss | Pogonatum aloides | Aloe Haircap | 1 | 2007 |
| moss | Pohlia | a Pohlia moss (unidentified) | 1 | 1993 |
| moss | Pohlia lescuriana | Pretty Nodding-moss | 1 | 2000 |
| moss | Pohlia melanodon | Pink-fruited Thread-moss | 11 | 2021 |
| moss | Pohlia nutans | Nodding Thread-moss | 3 | 1998 |
| moss | Pohlia proligera | Bent-bud Thread-moss | 1 | 1986 |
| moss | Pohlia wahlenbergii | Pale Glaucous Thread-moss | 1 | 2015 |
| moss | Polytrichastrum formosum | Bank Haircap | 44 | 2021 |
| moss | Polytrichum | a hair-moss (unidentified) | 5 | 2020 |
| moss | Polytrichum commune | Common Haircap | 3 | 2020 |
| moss | Polytrichum commune var. commune | a common haircap | 3 | 2007 |
| moss | Polytrichum juniperinum | Juniper Haircap | 17 | 2020 |
| moss | Polytrichum piliferum | Bristly Haircap | 8 | 2018 |
| moss | Pseudephemerum nitidum | Delicate Earth-moss | 1 | 2007 |
| moss | Pseudocrossidium hornschuchianum | Hornschuch's Beard-moss | 14 | 2021 |
| moss | Pseudocrossidium revolutum | Revolute Beard-moss | 6 | 2021 |
| moss | Pseudoscleropodium purum | Neat Feather-moss | 141 | 2021 |
| moss | Pseudotaxiphyllum elegans | Elegant Silk-moss | 13 | 2021 |
| moss | Pylaisia polyantha | Many-flowered Leskea | 3 | 2007 |
| moth or butterfly - butterfly | Papilio machaon | Swallowtail | 8 | 2013 |
| moth or butterfly - butterfly | Papilio machaon britannicus | a swallowtail | 2 | 2003 |
| moth or butterfly - butterfly | Pararge aegeria | Speckled Wood | 25187 | 2022 |
| moth or butterfly - butterfly | Pieridae | a Pieridae species (unidentified) | 4 | 2012 |
| moth or butterfly - butterfly | Pieris brassicae | Large White | 22270 | 2022 |
| moth or butterfly - butterfly | Pieris brassicae/rapae | a Large or a Small White Butterfly (unidentified) | 87 | 2018 |
| moth or butterfly - butterfly | Pieris (butterfly) | a Large, Small,or Green-veined White butterfly (unidentified) | 52 | 2020 |
| moth or butterfly - butterfly | Pieris napi | Green-veined White | 9762 | 2022 |
| moth or butterfly - butterfly | Pieris napi sabellicae | a green-veined white | 920 | 2006 |
| moth or butterfly - butterfly | Pieris rapae | Small White | 22312 | 2022 |
| moth or butterfly - butterfly | Pieris rapae or Pieris napi | a Small White or Green-veined White (unidentified) | 7 | 2021 |
| moth or butterfly - butterfly | Pieris sp. or Leptidea sp. (butterfly) | a Large, Small, Green-veined or Wood White butterfly (unidentified) | 195 | 2019 |
| moth or butterfly - butterfly | Plebejus argus | Silver-studded Blue | 4 | 1984 |
| moth or butterfly - butterfly | Polygonia c-album | Comma | 11022 | 2022 |
| moth or butterfly - butterfly | Polyommatus bellargus | Adonis Blue | 26 | 2011 |
| moth or butterfly - butterfly | Polyommatus coridon | Chalkhill Blue | 287 | 2017 |
| moth or butterfly - butterfly | Polyommatus icarus | Common Blue | 11330 | 2022 |
| moth or butterfly - butterfly | Polyommatus icarus mariscolore | a common blue (Tean form) | 1 | 2009 |
| moth or butterfly - butterfly | Pontia daplidice | Bath White | 2 | 1984 |
| moth or butterfly - butterfly | Pyrgus malvae | Grizzled Skipper | 820 | 2021 |
| moth or butterfly - butterfly | Pyronia tithonus | Gatekeeper | 14872 | 2022 |
| moth or butterfly - butterfly | Pyronia tithonus britanniae | a Gatekeeper | 3 | 2015 |
| moth or butterfly - macro moth | Pachycnemia hippocastanaria | Horse Chestnut (moth) | 6 | 2019 |
| moth or butterfly - macro moth | Panemeria tenebrata | Small Yellow Underwing | 152 | 2022 |
| moth or butterfly - macro moth | Panolis flammea | Pine Beauty | 53 | 2021 |
| moth or butterfly - macro moth | Papestra biren | Glaucous Shears | 6 | 2011 |
| moth or butterfly - macro moth | Paradarisa consonaria | Square Spot | 34 | 2017 |
| moth or butterfly - macro moth | Parascotia fuliginaria | Waved Black | 1 | 1999 |
| moth or butterfly - macro moth | Parasemia plantaginis plantaginis | Wood Tiger | 6 | 1981 |
| moth or butterfly - macro moth | Parastichtis suspecta | Suspected | 10 | 2019 |
| moth or butterfly - macro moth | Parectropis similaria | Brindled White-spot | 57 | 2021 |
| moth or butterfly - macro moth | Pasiphila chloerata | Sloe Pug | 13 | 2020 |
| moth or butterfly - macro moth | Pasiphila rectangulata | Green Pug | 1127 | 2022 |
| moth or butterfly - macro moth | Pechipogo strigilata | Common Fan-foot | 8 | 2020 |
| moth or butterfly - macro moth | Pelurga comitata | Dark Spinach | 20 | 2014 |
| moth or butterfly - macro moth | Pennithera firmata | Pine Carpet | 94 | 2021 |
| moth or butterfly - macro moth | Perconia strigillaria | Grass Wave | 2 | 2001 |
| moth or butterfly - macro moth | Peribatodes rhomboidaria | Willow Beauty | 5299 | 2022 |
| moth or butterfly - macro moth | Peridea anceps | Great Prominent | 27 | 2019 |
| moth or butterfly - macro moth | Peridroma saucia | Pearly Underwing | 139 | 2022 |
| moth or butterfly - macro moth | Perizoma affinitata | Rivulet | 225 | 2022 |
| moth or butterfly - macro moth | Perizoma albulata | a moth | 24 | 2022 |
| moth or butterfly - macro moth | Perizoma albulata albulata | Grass Rivulet | 112 | 2020 |
| moth or butterfly - macro moth | Perizoma alchemillata | Small Rivulet | 190 | 2022 |
| moth or butterfly - macro moth | Perizoma bifaciata | Barred Rivulet | 35 | 2020 |
| moth or butterfly - macro moth | Perizoma blandiata blandiata | Pretty Pinion | 2 | 1993 |
| moth or butterfly - macro moth | Perizoma flavofasciata | Sandy Carpet | 190 | 2022 |
| moth or butterfly - macro moth | Petrophora chlorosata | Brown Silver-line | 254 | 2022 |
| moth or butterfly - macro moth | Phalera bucephala | Buff-tip | 1148 | 2022 |
| moth or butterfly - macro moth | Pheosia gnoma | Lesser Swallow Prominent | 236 | 2022 |
| moth or butterfly - macro moth | Pheosia tremula | Swallow Prominent | 602 | 2022 |
| moth or butterfly - macro moth | Phigalia pilosaria | Pale Brindled Beauty | 114 | 2022 |
| moth or butterfly - macro moth | Philereme transversata | a moth | 7 | 2020 |
| moth or butterfly - macro moth | Philereme transversata britannica | Dark Umber | 82 | 2021 |
| moth or butterfly - macro moth | Philereme vetulata | Brown Scallop | 43 | 2021 |
| moth or butterfly - macro moth | Phlogophora meticulosa | Angle Shades | 2383 | 2022 |
| moth or butterfly - macro moth | Photedes fluxa | Mere Wainscot | 4 | 1981 |
| moth or butterfly - macro moth | Photedes minima | Small Dotted Buff | 103 | 2022 |
| moth or butterfly - macro moth | Phragmatobia fuliginosa | Ruby Tiger | 1154 | 2022 |
| moth or butterfly - macro moth | Phragmatobia fuliginosa fuliginosa | a Ruby Tiger | 4 | 2010 |
| moth or butterfly - macro moth | Phyllodesma ilicifolia | Small Lappet | 2 | 1979 |
| moth or butterfly - macro moth | Phymatopus hecta | Gold Swift | 43 | 2018 |
| moth or butterfly - macro moth | Phytometra viridaria | Small Purple-barred | 20 | 2021 |
| moth or butterfly - macro moth | Plagodis dolabraria | Scorched Wing | 365 | 2022 |
| moth or butterfly - macro moth | Plagodis pulveraria | Barred Umber | 31 | 2021 |
| moth or butterfly - macro moth | Plemyria rubiginata | a moth | 23 | 2022 |
| moth or butterfly - macro moth | Plemyria rubiginata plumbata | Blue-bordered Carpet | 152 | 2021 |
| moth or butterfly - macro moth | Plusia festucae | Gold Spot | 306 | 2022 |
| moth or butterfly - macro moth | Poecilocampa populi | December Moth | 289 | 2022 |
| moth or butterfly - macro moth | Polia bombycina | Pale Shining Brown | 1 | 1967 |
| moth or butterfly - macro moth | Polia hepatica | Silvery Arches | 1 | 1954 |
| moth or butterfly - macro moth | Polia nebulosa | Grey Arches | 144 | 2022 |
| moth or butterfly - macro moth | Polychrysia moneta | Golden Plusia | 65 | 2020 |
| moth or butterfly - macro moth | Polymixis flavicincta | Large Ranunculus | 303 | 2022 |
| moth or butterfly - macro moth | Polymixis lichenea | a moth | 85 | 2022 |
| moth or butterfly - macro moth | Polymixis lichenea lichenea | Feathered Ranunculus | 514 | 2021 |
| moth or butterfly - macro moth | Polyploca ridens | Frosted Green | 57 | 2022 |
| moth or butterfly - macro moth | Pseudoips prasinana | Green Silver-lines | 218 | 2020 |
| moth or butterfly - macro moth | Pseudoips prasinana britannica | a Green Silver-lines | 4 | 2014 |
| moth or butterfly - macro moth | Pseudopanthera macularia | Speckled Yellow | 77 | 2020 |
| moth or butterfly - macro moth | Pseudoterpna pruinata atropunctaria | Grass Emerald | 29 | 2021 |
| moth or butterfly - macro moth | Pterapherapteryx sexalata | Small Seraphim | 20 | 2021 |
| moth or butterfly - macro moth | Pterostoma palpina | Pale Prominent | 627 | 2022 |
| moth or butterfly - macro moth | Ptilodon capucina | Coxcomb Prominent | 374 | 2022 |
| moth or butterfly - macro moth | Pyrrhia umbra | Bordered Sallow | 35 | 2022 |
| moth or butterfly - micro moth | Palpita vitrealis | a pyralid moth | 38 | 2022 |
| moth or butterfly - micro moth | Pammene albuginana | a tortrix moth | 8 | 2018 |
| moth or butterfly - micro moth | Pammene argyrana | Black-bordered Piercer | 4 | 2021 |
| moth or butterfly - micro moth | Pammene aurana | a tortrix moth | 43 | 2021 |
| moth or butterfly - micro moth | Pammene aurita | a tortrix moth | 34 | 2022 |
| moth or butterfly - micro moth | Pammene fasciana | Acorn Piercer | 118 | 2022 |
| moth or butterfly - micro moth | Pammene gallicana | a tortrix moth | 10 | 2018 |
| moth or butterfly - micro moth | Pammene germmana | a tortrix moth | 12 | 2011 |
| moth or butterfly - micro moth | Pammene giganteana | a tortrix moth | 4 | 2012 |
| moth or butterfly - micro moth | Pammene ignorata | a tortrix moth | 2 | 2006 |
| moth or butterfly - micro moth | Pammene regiana | a tortrix moth | 57 | 2022 |
| moth or butterfly - micro moth | Pammene rhediella | Fruitlet Mining Tortrix | 7 | 2013 |
| moth or butterfly - micro moth | Pammene spiniana | a tortrix moth | 1 | 1998 |
| moth or butterfly - micro moth | Pammene trauniana | a tortrix moth | 7 | 2019 |
| moth or butterfly - micro moth | Pancalia leuwenhoekella | a micro-moth | 16 | 2021 |
| moth or butterfly - micro moth | Pandemis | a Pandemis species (unidentified) | 2 | 2014 |
| moth or butterfly - micro moth | Pandemis cerasana | Barred Fruit-tree Tortrix | 352 | 2022 |
| moth or butterfly - micro moth | Pandemis cinnamomeana | a tortrix moth | 73 | 2022 |
| moth or butterfly - micro moth | Pandemis corylana | Chequered Fruit-tree Tortrix | 225 | 2022 |
| moth or butterfly - micro moth | Pandemis heparana | Dark Fruit-tree Tortrix | 412 | 2022 |
| moth or butterfly - micro moth | Parachronistis albiceps | a micro-moth | 9 | 2022 |
| moth or butterfly - micro moth | Paracrania chrysolepidella | a micro-moth | 1 | 1993 |
| moth or butterfly - micro moth | Parapoynx stratiotata | Ringed China-mark | 148 | 2022 |
| moth or butterfly - micro moth | Paraswammerdamia | a Paraswammerdamia species (unidentified) | 1 | 2014 |
| moth or butterfly - micro moth | Paraswammerdamia albicapitella | White-headed Ermel | 35 | 2021 |
| moth or butterfly - micro moth | Paraswammerdamia nebulella | Hawthorn Ermel | 90 | 2022 |
| moth or butterfly - micro moth | Paratalanta pandalis | a pyralid moth | 2 | 1996 |
| moth or butterfly - micro moth | Parectopa ononidis | a micro-moth | 3 | 2022 |
| moth or butterfly - micro moth | Parornix | a Parornix species (unidentified) | 18 | 2021 |
| moth or butterfly - micro moth | Parornix anglicella | Hawthorn Slender | 165 | 2022 |
| moth or butterfly - micro moth | Parornix betulae | a micro-moth | 16 | 2021 |
| moth or butterfly - micro moth | Parornix devoniella | a micro-moth | 129 | 2022 |
| moth or butterfly - micro moth | Parornix fagivora | a micro-moth | 11 | 2022 |
| moth or butterfly - micro moth | Parornix finitimella | a micro-moth | 28 | 2022 |
| moth or butterfly - micro moth | Parornix scoticella | a micro-moth | 16 | 2022 |
| moth or butterfly - micro moth | Parornix torquillella | Blackthorn Slender | 31 | 2022 |
| moth or butterfly - micro moth | Patania ruralis | Mother of Pearl | 2292 | 2022 |
| moth or butterfly - micro moth | Pediasia aridella | a pyralid moth | 2 | 1995 |
| moth or butterfly - micro moth | Pelochrista caecimaculana | a tortrix moth | 2 | 2019 |
| moth or butterfly - micro moth | Pempelia palumbella | a pyralid moth | 2 | 1995 |
| moth or butterfly - micro moth | Perittia obscurepunctella | a micro-moth | 3 | 2010 |
| moth or butterfly - micro moth | Phalonidia affinitana | a micro-moth | 11 | 2013 |
| moth or butterfly - micro moth | Phalonidia curvistrigana | a micro-moth | 1 | 1906 |
| moth or butterfly - micro moth | Phalonidia manniana | a micro-moth | 6 | 2019 |
| moth or butterfly - micro moth | Phaulernis fulviguttella | a micro-moth | 6 | 1988 |
| moth or butterfly - micro moth | Phtheochroa inopiana | a micro-moth | 30 | 2022 |
| moth or butterfly - micro moth | Phtheochroa rugosana | a micro-moth | 14 | 2021 |
| moth or butterfly - micro moth | Phtheochroa sodaliana | a micro-moth | 4 | 2015 |
| moth or butterfly - micro moth | Phycita roborella | a pyralid moth | 111 | 2022 |
| moth or butterfly - micro moth | Phycitodes | a Phycitodes species (unidentified) | 4 | 2020 |
| moth or butterfly - micro moth | Phycitodes binaevella | a pyralid moth | 183 | 2022 |
| moth or butterfly - micro moth | Phycitodes maritima | a pyralid moth | 34 | 2019 |
| moth or butterfly - micro moth | Phycitodes saxicola | a pyralid moth | 6 | 2006 |
| moth or butterfly - micro moth | Phyllocnistis saligna | a micro-moth | 20 | 2022 |
| moth or butterfly - micro moth | Phyllocnistis unipunctella | a micro-moth | 28 | 2019 |
| moth or butterfly - micro moth | Phyllonorycter | a Phyllonorycter species (unidentified) | 8 | 2020 |
| moth or butterfly - micro moth | Phyllonorycter acerifoliella | a micro-moth | 86 | 2022 |
| moth or butterfly - micro moth | Phyllonorycter blancardella | Brown Apple Midget | 14 | 2020 |
| moth or butterfly - micro moth | Phyllonorycter cerasicolella | a micro-moth | 19 | 2022 |
| moth or butterfly - micro moth | Phyllonorycter comparella | a micro-moth | 1 | 2013 |
| moth or butterfly - micro moth | Phyllonorycter coryli | Nut Leaf Blister Moth | 244 | 2022 |
| moth or butterfly - micro moth | Phyllonorycter corylifoliella | a micro-moth | 95 | 2022 |
| moth or butterfly - micro moth | Phyllonorycter cydoniella | a micro-moth | 2 | 2009 |
| moth or butterfly - micro moth | Phyllonorycter dubitella | a micro-moth | 5 | 2014 |
| moth or butterfly - micro moth | Phyllonorycter emberizaepenella | a micro-moth | 3 | 2011 |
| moth or butterfly - micro moth | Phyllonorycter esperella | Dark Hornbeam Midget | 36 | 2020 |
| moth or butterfly - micro moth | Phyllonorycter froelichiella | a micro-moth | 16 | 2020 |
| moth or butterfly - micro moth | Phyllonorycter geniculella | Sycamore Midget | 47 | 2022 |
| moth or butterfly - micro moth | Phyllonorycter harrisella | White Oak Midget | 35 | 2021 |
| moth or butterfly - micro moth | Phyllonorycter heegeriella | a micro-moth | 16 | 2020 |
| moth or butterfly - micro moth | Phyllonorycter hilarella | a micro-moth | 11 | 2021 |
| moth or butterfly - micro moth | Phyllonorycter hostis | a micro-moth | 2 | 2021 |
| moth or butterfly - micro moth | Phyllonorycter joannisi | a micro-moth | 16 | 2021 |
| moth or butterfly - micro moth | Phyllonorycter klemannella | a micro-moth | 30 | 2021 |
| moth or butterfly - micro moth | Phyllonorycter kuhlweiniella | a micro-moth | 1 | 1906 |
| moth or butterfly - micro moth | Phyllonorycter lantanella | a micro-moth | 23 | 2021 |
| moth or butterfly - micro moth | Phyllonorycter lautella | a micro-moth | 8 | 2009 |
| moth or butterfly - micro moth | Phyllonorycter leucographella | Firethorn Leaf-miner | 131 | 2022 |
| moth or butterfly - micro moth | Phyllonorycter maestingella | Beech Midget | 127 | 2022 |
| moth or butterfly - micro moth | Phyllonorycter mespilella | a micro-moth | 5 | 2016 |
| moth or butterfly - micro moth | Phyllonorycter messaniella | Garden Midget | 111 | 2022 |
| moth or butterfly - micro moth | Phyllonorycter muelleriella | a micro-moth | 14 | 2020 |
| moth or butterfly - micro moth | Phyllonorycter nicellii | a micro-moth | 115 | 2022 |
| moth or butterfly - micro moth | Phyllonorycter nigrescentella | a micro-moth | 1 | 2000 |
| moth or butterfly - micro moth | Phyllonorycter oxyacanthae | Common Thorn Midget | 97 | 2022 |
| moth or butterfly - micro moth | Phyllonorycter platani | a micro-moth | 52 | 2021 |
| moth or butterfly - micro moth | Phyllonorycter quercifoliella | Common Oak Midget | 46 | 2022 |
| moth or butterfly - micro moth | Phyllonorycter rajella | a micro-moth | 46 | 2022 |
| moth or butterfly - micro moth | Phyllonorycter roboris | a micro-moth | 7 | 2020 |
| moth or butterfly - micro moth | Phyllonorycter salicicolella | a micro-moth | 12 | 2020 |
| moth or butterfly - micro moth | Phyllonorycter scabiosella | Surrey Midget Moth | 1 | 1996 |
| moth or butterfly - micro moth | Phyllonorycter schreberella | a micro-moth | 25 | 2021 |
| moth or butterfly - micro moth | Phyllonorycter scopariella | a micro-moth | 2 | 1964 |
| moth or butterfly - micro moth | Phyllonorycter sorbi | Rowan Midget | 4 | 2016 |
| moth or butterfly - micro moth | Phyllonorycter spinicolella | a micro-moth | 31 | 2022 |
| moth or butterfly - micro moth | Phyllonorycter stettinensis | a micro-moth | 40 | 2022 |
| moth or butterfly - micro moth | Phyllonorycter strigulatella | a micro-moth | 10 | 2020 |
| moth or butterfly - micro moth | Phyllonorycter tenerella | a micro-moth | 2 | 2021 |
| moth or butterfly - micro moth | Phyllonorycter trifasciella | a micro-moth | 22 | 2020 |
| moth or butterfly - micro moth | Phyllonorycter tristrigella | Elm Midget | 71 | 2022 |
| moth or butterfly - micro moth | Phyllonorycter ulicicolella | a micro-moth | 2 | 1906 |
| moth or butterfly - micro moth | Phyllonorycter ulmifoliella | Red Birch Midget | 31 | 2022 |
| moth or butterfly - micro moth | Phyllonorycter viminiella | a micro-moth | 16 | 2021 |
| moth or butterfly - micro moth | Phylloporia bistrigella | a longhorn moth | 3 | 2014 |
| moth or butterfly - micro moth | Piniphila bifasciana | a tortrix moth | 4 | 2015 |
| moth or butterfly - micro moth | Platyptilia gonodactyla | a plume moth | 16 | 2020 |
| moth or butterfly - micro moth | Platyptilia isodactylus | a plume moth | 1 | 2021 |
| moth or butterfly - micro moth | Platytes alpinella | a pyralid moth | 1 | 1997 |
| moth or butterfly - micro moth | Plodia interpunctella | Indian Meal Moth | 41 | 2021 |
| moth or butterfly - micro moth | Plutella porrectella | a micro-moth | 46 | 2022 |
| moth or butterfly - micro moth | Plutella xylostella | Diamond-back Moth | 1580 | 2022 |
| moth or butterfly - micro moth | Porrittia galactodactyla | a plume moth | 5 | 2017 |
| moth or butterfly - micro moth | Povolnya leucapennella | a micro-moth | 2 | 2009 |
| moth or butterfly - micro moth | Prays fraxinella | Ash Bud Moth | 136 | 2022 |
| moth or butterfly - micro moth | Prays oleae | Olive Kernel Borer | 3 | 2013 |
| moth or butterfly - micro moth | Prays ruficeps | Dark Ash Bud Moth | 26 | 2022 |
| moth or butterfly - micro moth | Prochoreutis myllerana | a moth | 2 | 2002 |
| moth or butterfly - micro moth | Pseudargyrotoza conwagana | a tortrix moth | 745 | 2022 |
| moth or butterfly - micro moth | Pseudococcyx turionella | Pine Bud Moth | 2 | 2009 |
| moth or butterfly - micro moth | Pseudosciaphila branderiana | a tortrix moth | 2 | 2018 |
| moth or butterfly - micro moth | Pseudoswammerdamia combinella | a micro-moth | 60 | 2022 |
| moth or butterfly - micro moth | Pseudotelphusa paripunctella | a micro-moth | 1 | 2017 |
| moth or butterfly - micro moth | Pseudotelphusa scalella | a micro-moth | 2 | 2017 |
| moth or butterfly - micro moth | Psyche casta | a bagworm moth | 39 | 2022 |
| moth or butterfly - micro moth | Psychoides | a Psychoides species (unidentified) | 1 | 2015 |
| moth or butterfly - micro moth | Psychoides filicivora | a micro-moth | 53 | 2022 |
| moth or butterfly - micro moth | Psychoides verhuella | a micro-moth | 22 | 2021 |
| moth or butterfly - micro moth | Pterophoridae | a plume moth (unidentified) | 4 | 2015 |
| moth or butterfly - micro moth | Pterophorus pentadactyla | White Plume Moth | 298 | 2022 |
| moth or butterfly - micro moth | Ptocheuusa paupella | a micro-moth | 3 | 2013 |
| moth or butterfly - micro moth | Ptycholoma lecheana | a tortrix moth | 15 | 2021 |
| moth or butterfly - micro moth | Ptycholomoides aeriferana | a tortrix moth | 11 | 2020 |
| moth or butterfly - micro moth | Pyralis farinalis | Meal Moth | 166 | 2022 |
| moth or butterfly - micro moth | Pyrausta | a Pyrausta species (unidentified) | 6 | 2018 |
| moth or butterfly - micro moth | Pyrausta aurata | Mint Moth | 1168 | 2022 |
| moth or butterfly - micro moth | Pyrausta cingulata | a pyralid moth | 7 | 2017 |
| moth or butterfly - micro moth | Pyrausta despicata | Straw-barred Pearl | 98 | 2022 |
| moth or butterfly - micro moth | Pyrausta nigrata | a pyralid moth | 16 | 2021 |
| moth or butterfly - micro moth | Pyrausta ostrinalis | a pyralid moth | 49 | 2022 |
| moth or butterfly - micro moth | Pyrausta purpuralis | a pyralid moth | 220 | 2022 |
| moth or butterfly - moth (macro or micro not listed) moth | Psychidae | a Psychidae species (unidentified) | 1 | 2016 |
| plant | Paeonia mascula | Peony | 38 | 2011 |
| plant | Paeonia officinalis | Garden Peony | 6 | 2019 |
| plant | Panicum capillare | Witch-grass | 6 | 1998 |
| plant | Panicum effusum | a Plant | 1 | 1941 |
| plant | Panicum miliaceum | Common Millet | 43 | 2020 |
| plant | Panicum virgatum | a Plant | 1 | 2020 |
| plant | Papaver | a Papaver poppy (unidentified) | 28 | 2021 |
| plant | Papaver argemone | Prickly Poppy | 6 | 2008 |
| plant | Papaver atlanticum | Atlas Poppy | 10 | 2020 |
| plant | Papaver dubium | Long-headed Poppy | 318 | 2019 |
| plant | Papaver dubium subsp. dubium | a long-headed poppy | 9 | 2013 |
| plant | Papaver dubium subsp. lecoqii | Yellow-juiced Poppy | 162 | 2020 |
| plant | Papaver glaucum | a poppy | 2 | 1984 |
| plant | Papaver hybridum | Rough Poppy | 2 | 1939 |
| plant | Papaver nudicaule | Iceland Poppy | 3 | 2020 |
| plant | Papaver orientale | Oriental Poppy | 6 | 2019 |
| plant | Papaver rhoeas | Common Poppy | 1225 | 2021 |
| plant | Papaver somniferum | Opium Poppy | 329 | 2020 |
| plant | Parapholis filiformis | a Plant | 2 | 1921 |
| plant | Parapholis incurva | Curved Hard Grass | 6 | 2005 |
| plant | Parapholis strigosa | Hard Grass | 134 | 2019 |
| plant | Parentucellia viscosa | Yellow Bartsia | 2 | 1948 |
| plant | Parietaria judaica | Pellitory-of-the-Wall | 624 | 2020 |
| plant | Paris quadrifolia | Herb Paris | 210 | 2019 |
| plant | Parrotia persica | Persian Ironwood | 9 | 2015 |
| plant | Parthenocissus henryana | a Plant | 1 | 2019 |
| plant | Parthenocissus inserta | False Virginia-creeper | 6 | 2016 |
| plant | Parthenocissus quinquefolia | Virginia-creeper | 72 | 2019 |
| plant | Parthenocissus tricuspidata | Boston Ivy | 1 | 1992 |
| plant | Paspalum dilatatum | Dallis-grass | 1 | 1932 |
| plant | Paspalum racemosum | a Plant | 1 | 1922 |
| plant | Passiflora | a Passiflora species (unidentified) | 2 | 2013 |
| plant | Passiflora caerulea | Blue Passionflower | 13 | 2020 |
| plant | Passifloraceae | a Passifloraceae species (unidentified) | 1 | 2009 |
| plant | Pastinaca sativa | Wild Parsnip | 321 | 2021 |
| plant | Pastinaca sativa subsp. sativa | a Plant | 1 | 2000 |
| plant | Pastinaca sativa subsp. sativa var. hortensis | Parsnip | 16 | 2011 |
| plant | Pastinaca sativa var. sativa | Wild Parsnip ssp. sativa var. sylvestris | 1 | 2008 |
| plant | Paulownia tomentosa | Foxglove-tree | 8 | 2019 |
| plant | Pedicularis sylvatica | Lousewort | 28 | 2015 |
| plant | Pedicularis sylvatica subsp. sylvatica | a lousewort | 49 | 1999 |
| plant | Pelargonium | a Pelargonium (cultivated geranium) (unidentified) | 2 | 2013 |
| plant | Pennisetum glaucum | Pearl Millet | 5 | 1958 |
| plant | Pentaglottis sempervirens | Green Alkanet | 843 | 2022 |
| plant | Perovskia atriplicifolium | Russian Sage | 2 | 1986 |
| plant | Persicaria | a knotweed, water-pepper or bistort (Persicaria) (unidentified) | 8 | 2021 |
| plant | Persicaria amphibia | Amphibious Bistort | 913 | 2021 |
| plant | Persicaria amplexicaulis | Red Bistort | 15 | 2017 |
| plant | Persicaria bistorta | Common Bistort | 17 | 2021 |
| plant | Persicaria capitata | Pink-headed Persicaria | 6 | 2020 |
| plant | Persicaria hydropiper | Water-pepper | 379 | 2021 |
| plant | Persicaria lapathifolia | Pale Persicaria | 408 | 2021 |
| plant | Persicaria maculosa | Redshank (plant) | 1890 | 2020 |
| plant | Persicaria minor | Small Water-pepper | 2 | 1948 |
| plant | Persicaria mitis | Tasteless Water-pepper | 1 | 1984 |
| plant | Persicaria pensylvanica | Pinkweed | 1 | 1959 |
| plant | Persicaria wallichii | Himalayan Knotweed | 12 | 2004 |
| plant | Petasites | a Petasites species (unidentified) | 1 | 2011 |
| plant | Petasites albus | White Butterbur | 3 | 1998 |
| plant | Petasites fragrans | Winter Heliotrope | 516 | 2020 |
| plant | Petasites hybridus | Butterbur | 306 | 2021 |
| plant | Petroselinum crispum | Garden Parsley | 25 | 2014 |
| plant | Petroselinum segetum | Corn Parsley | 139 | 2021 |
| plant | Petunia axillaris x integrifolia = P. x hybrida | Petunia | 7 | 2016 |
| plant | Phacelia ciliata | a Plant | 3 | 1933 |
| plant | Phacelia tanacetifolia | Phacelia | 21 | 2020 |
| plant | Phalaris | a Phalaris species (unidentified) | 2 | 1999 |
| plant | Phalaris angusta | a Plant | 2 | 1928 |
| plant | Phalaris aquatica | Bulbous Canary-grass | 8 | 2007 |
| plant | Phalaris arundinacea | Reed Canary-grass | 1338 | 2020 |
| plant | Phalaris arundinacea var. picta | a Plant | 3 | 2015 |
| plant | Phalaris brachystachys | Confused Canary-grass | 3 | 1930 |
| plant | Phalaris canariensis | Canary-grass | 70 | 2020 |
| plant | Phalaris minor | Lesser Canary Grass | 9 | 1986 |
| plant | Phalaris paradoxa | Awned Canary-grass | 5 | 2012 |
| plant | Phaseolus vulgaris | French Bean | 1 | 1955 |
| plant | Phegopteris connectilis | Beech Fern | 1 | 1952 |
| plant | Philadelphus | a mock-orange (unidentified) | 10 | 2015 |
| plant | Philadelphus coronarius | Mock Orange | 21 | 2018 |
| plant | Philadelphus coronarius x microphyllus x pubescens = P. x virginalis | a mock-orange | 1 | 1999 |
| plant | Phillyrea | a Phillyrea species (unidentified) | 1 | 2015 |
| plant | Phillyrea latifolia | an ash | 2 | 2000 |
| plant | Phleum | a timothy or a cat's-tail (unidentified) | 4 | 2016 |
| plant | Phleum arenarium | Sand Cat's-tail | 21 | 2017 |
| plant | Phleum bertolonii | Smaller Cat's-tail | 881 | 2019 |
| plant | Phleum exaratum | a Plant | 1 | 1939 |
| plant | Phleum pratense | Timothy | 3083 | 2021 |
| plant | Phleum pratense (sens.lat.) | Timothy (sens. lat.) | 165 | 2011 |
| plant | Phleum subulatum | a Plant | 2 | 1939 |
| plant | Phlomis fruticosa | Jerusalem Sage | 1 | 2019 |
| plant | Phlomis russeliana | Turkish Sage | 1 | 2019 |
| plant | Phlox | a phlox (unidentified) | 1 | 2014 |
| plant | Phlox paniculata | Phlox | 3 | 2015 |
| plant | Phoenix dactylifera | Date Palm | 1 | 1932 |
| plant | Phormium tenax | New Zealand Flax | 4 | 2009 |
| plant | Photinia | a Photinia species (unidentified) | 2 | 2019 |
| plant | Photinia davidiana | Stranvaesia | 9 | 2016 |
| plant | Phragmites | a Phragmites species (unidentified) | 18 | 2022 |
| plant | Phragmites australis | Common Reed | 2032 | 2022 |
| plant | Phragmites sp. or Phalaris sp. (unidentified and noted as reed) | a reed or reed canary-grass (unidentified and noted as reed) | 160 | 2018 |
| plant | Phuopsis stylosa | Caucasian Crosswort | 2 | 2019 |
| plant | Phygelius capensis | Cape Figwort | 1 | 2017 |
| plant | Phyllitis | a Phyllitis species (unidentified) | 3 | 2014 |
| plant | Phyllitis scolopendrium | Hart's-tongue | 4094 | 2022 |
| plant | Phyllitis scolopendrium x Asplenium trichomanes = X Asplenophyllitis confluens | a fern | 1 | 1997 |
| plant | Phyllostachys | a bamboo (unidentified) | 3 | 2019 |
| plant | Physalis alkekengi | Japanese-lantern | 2 | 1999 |
| plant | Physalis angulata | a Plant | 1 | 1930 |
| plant | Physalis foetens | a Plant | 1 | 1926 |
| plant | Physalis ixocarpa | Tomatillo | 1 | 2016 |
| plant | Physalis peruviana | Cape Gooseberry | 14 | 2017 |
| plant | Physalis philadelphica | a japanese-lantern | 2 | 1996 |
| plant | Physalis pubescens | Low Ground-cherry | 1 | 1932 |
| plant | Physospermum cornubiense | Bladderseed | 1 | 1999 |
| plant | Phytolacca | a Phytolacca species (unidentified) | 1 | 2019 |
| plant | Picea | a spruce (unidentified) | 19 | 2017 |
| plant | Picea abies | Norway Spruce | 210 | 2016 |
| plant | Picea breweriana | Brewer's Spruce | 1 | 2015 |
| plant | Picea orientalis | Oriental Spruce | 3 | 2013 |
| plant | Picea pungens | Colorado Spruce | 12 | 2000 |
| plant | Picea sitchensis | Sitka Spruce | 17 | 2016 |
| plant | Picea smithiana | Morinda Spruce | 1 | 2014 |
| plant | Picris | a Picris species (unidentified) | 2 | 2015 |
| plant | Picris echioides | Bristly Oxtongue | 1764 | 2022 |
| plant | Picris hieracioides | Hawkweed Oxtongue | 191 | 2021 |
| plant | Pieris japonica var. katsura | Japanese Pieris Katsura | 1 | 2011 |
| plant | Pieris (plant) | a Pieris plant species (unidentified) | 7 | 2021 |
| plant | Pilosella aurantiaca | Fox-and-cubs | 118 | 2020 |
| plant | Pilosella aurantiaca subsp. carpathicola | a fox-and-cubs | 14 | 2013 |
| plant | Pilosella caespitosa | Yellow Fox-and-cubs | 2 | 2014 |
| plant | Pilosella flagellaris | Shetland Mouse-ear-hawkweed | 2 | 2015 |
| plant | Pilosella flagellaris subsp. flagellaris | a shetland mouse-ear-hawkweed | 4 | 2014 |
| plant | Pilosella officinarum | Mouse-ear-hawkweed | 1809 | 2021 |
| plant | Pilularia globulifera | Pillwort | 2 | 1916 |
| plant | Pimpinella anisum | a Plant | 1 | 1937 |
| plant | Pimpinella major | Greater Burnet-saxifrage | 4 | 1985 |
| plant | Pimpinella saxifraga | Burnet-saxifrage | 1623 | 2021 |
| plant | Pinus | a pine (unidentified) | 131 | 2021 |
| plant | Pinus contorta | Lodgepole Pine | 12 | 2013 |
| plant | Pinus jeffreyi | Jeffery's Pine | 3 | 2015 |
| plant | Pinus mugo | Dwarf Mountain Pine | 1 | 2008 |
| plant | Pinus nigra | Austrian Pine | 113 | 2016 |
| plant | Pinus nigra subsp. laricio | Corsican Pine | 23 | 2011 |
| plant | Pinus nigra subsp. nigra | an austrian pine | 14 | 2011 |
| plant | Pinus pinaster | Maritime Pine | 4 | 2015 |
| plant | Pinus pinea | Stone Pine | 7 | 2017 |
| plant | Pinus ponderosa | Western Yellow-pine | 4 | 2015 |
| plant | Pinus radiata | Monterey Pine | 15 | 2019 |
| plant | Pinus strobus | Weymouth Pine | 3 | 2013 |
| plant | Pinus sylvestris | Scots Pine | 755 | 2021 |
| plant | Pinus thunbergii | Japanese Black-pine | 60 | 2000 |
| plant | Pinus wallichiana | Bhutan Pine | 20 | 2015 |
| plant | Pinus x holfordiana | Holford's Pine | 2 | 2005 |
| plant | Pisum sativum | Garden Pea | 1 | 1929 |
| plant | Pittosporum | a Pittosporum species (unidentified) | 63 | 2015 |
| plant | Plagiobothrys procumbens | a Plant | 1 | 1937 |
| plant | Plagiobothrys stipitatus | Stipitate Forget-me-not | 1 | 1933 |
| plant | Plantago | a plantain (Plantago) (unidentified) | 19 | 2017 |
| plant | Plantago afra | Glandular Plantain | 2 | 1940 |
| plant | Plantago arenaria | Branched Plantain | 1 | 1930 |
| plant | Plantago aristata | a Plant | 1 | 1959 |
| plant | Plantago coronopus | Buck's-horn Plantain | 482 | 2020 |
| plant | Plantago lagopus | a Plant | 4 | 1958 |
| plant | Plantago lanceolata | Ribwort Plantain | 8143 | 2022 |
| plant | Plantago major | Greater Plantain | 5930 | 2022 |
| plant | Plantago major subsp. intermedia | a greater plantain | 44 | 2017 |
| plant | Plantago major subsp. major | a greater plantain | 258 | 2016 |
| plant | Plantago maritima | Sea Plantain | 350 | 2018 |
| plant | Plantago media | Hoary Plantain | 1909 | 2021 |
| plant | Plantago sempervirens | a plantain | 4 | 2014 |
| plant | Platanthera | a butterfly-orchid (unidentified) | 3 | 2022 |
| plant | Platanthera bifolia | Lesser Butterfly-orchid | 19 | 2011 |
| plant | Platanthera chlorantha | Greater Butterfly-orchid | 130 | 2022 |
| plant | Platanus | a plane (unidentified) | 24 | 2020 |
| plant | Platanus occidentalis x orientalis = P. x hispanica | London Plane | 201 | 2018 |
| plant | Platanus orientalis | Oriental Plane | 18 | 2019 |
| plant | Platanus orientalis var insularis | Cyprian Plane | 1 | 2015 |
| plant | Pleioblastus pygmaeus | Dwarf Bamboo | 4 | 2016 |
| plant | Poa | a meadow-grass (unidentified) | 66 | 2021 |
| plant | Poa angustifolia | Narrow-leaved Meadow-grass | 74 | 2017 |
| plant | Poa annua | Annual Meadow-grass | 4535 | 2021 |
| plant | Poa bulbosa | Bulbous Meadow-grass | 15 | 2014 |
| plant | Poaceae | a grass (unidentified) | 49 | 2018 |
| plant | Poa compressa | Flattened Meadow-grass | 240 | 2021 |
| plant | Poa humilis | Spreading Meadow-grass | 68 | 2020 |
| plant | Poa infirma | Early Meadow-grass | 11 | 2019 |
| plant | Poa nemoralis | Wood Meadow-grass | 429 | 2021 |
| plant | Poa palustris | Swamp Meadow-grass | 3 | 1930 |
| plant | Poa pratensis | Smooth Meadow-grass | 1523 | 2021 |
| plant | Poa pratensis (sens.lat.) | Smooth Meadow-grass sens. lat. | 110 | 2017 |
| plant | Poa trivialis | Rough Meadow-grass | 3439 | 2021 |
| plant | Polemonium caeruleum | Jacob's-ladder | 4 | 1999 |
| plant | Polycarpon tetraphyllum | Four-leaved All-seed | 7 | 2019 |
| plant | Polygala | a milkwort (unidentified) | 28 | 2013 |
| plant | Polygala calcarea | Chalk Milkwort | 13 | 2011 |
| plant | Polygala serpyllifolia | Heath Milkwort | 54 | 2019 |
| plant | Polygala vulgaris | Common Milkwort | 421 | 2021 |
| plant | Polygonatum multiflorum | Solomon's-seal | 102 | 2018 |
| plant | Polygonatum multiflorum x odoratum = P. x hybridum | Garden Solomon's Seal | 7 | 2012 |
| plant | Polygonatum odoratum | Angular Solomon's-seal | 13 | 2010 |
| plant | Polygonum | a knotgrass (unidentified) | 31 | 2015 |
| plant | Polygonum arenarium | Lesser Red-knotgrass | 11 | 2005 |
| plant | Polygonum arenastrum | Equal-leaved Knotgrass | 575 | 2017 |
| plant | Polygonum aviculare | Knotgrass (plant) | 2654 | 2020 |
| plant | Polygonum aviculare agg. (sensu lato) | Knotgrass [agg.] (plant) | 246 | 2017 |
| plant | Polygonum bellardii | a Plant | 2 | 1925 |
| plant | Polygonum oxyspermum | Ray's Knotgrass | 4 | 1998 |
| plant | Polygonum patulum | Red Knotgrass | 3 | 1930 |
| plant | Polygonum rurivagum | Cornfield Knotgrass | 36 | 2003 |
| plant | Polypodiaceae | a Polypodiaceae species (unidentified) | 6 | 1999 |
| plant | Polypodium | a polypody fern (unidentified) | 49 | 2018 |
| plant | Polypodium cambricum | Southern Polypody | 183 | 2015 |
| plant | Polypodium interjectum | Intermediate Polypody | 448 | 2020 |
| plant | Polypodium interjectum x cambricum = P. x shivasiae | a polypody | 1 | 2007 |
| plant | Polypodium vulgare | Polypody | 131 | 2018 |
| plant | Polypodium vulgare (sensu lato) | a polypody vulgare fern | 88 | 2010 |
| plant | Polypodium vulgare x interjectum = P. x mantoniae | a polypody | 3 | 2015 |
| plant | Polypogon monspeliensis | Annual Beard-grass | 9 | 2016 |
| plant | Polypogon viridis | Water Bent | 64 | 2020 |
| plant | Polystichum aculeatum | Hard Shield-fern | 281 | 2022 |
| plant | Polystichum setiferum | Soft Shield-fern | 1281 | 2021 |
| plant | Polystichum setiferum x aculeatum = P. x bicknellii | a buckler-fern | 5 | 2016 |
| plant | Polystichum tsus-simense | Korean Rock-fern | 1 | 2009 |
| plant | Populus | a poplar (unidentified) | 256 | 2021 |
| plant | Populus alba | White Poplar | 239 | 2019 |
| plant | Populus alba x tremula = P. x canescens | Grey Poplar | 246 | 2018 |
| plant | Populus balsamifera | Eastern Balsam-poplar | 15 | 2017 |
| plant | Populus candicans | Balm-of-Gilead | 13 | 2000 |
| plant | Populus canescens | a poplar | 12 | 2010 |
| plant | Populus gileadensis | a poplar | 3 | 2014 |
| plant | Populus nigra | a poplar | 39 | 2017 |
| plant | Populus nigra cultivars | a Black Poplar cultivar | 1 | 2018 |
| plant | Populus nigra 'Italica' | Lombardy-poplar | 166 | 2016 |
| plant | Populus nigra subsp. betulifolia | Black Poplar | 176 | 2017 |
| plant | Populus nigra x deltoides = P. x canadensis | Hybrid Black Poplar | 324 | 2018 |
| plant | Populus tremula | Aspen | 292 | 2021 |
| plant | Populus trichocarpa | Western Balsam Poplar | 7 | 1992 |
| plant | Populus trichocarpa x balsamifera = P. 'Balsam Spire' | Hybrid Balsam-poplar | 2 | 2016 |
| plant | Populus x canadensis 'Marilandica' | Maryland Poplar | 1 | 2007 |
| plant | Populus x canadensis 'Regenerata' | Railway Poplar | 1 | 1932 |
| plant | Populus x canadensis 'Serotina' | a poplar | 2 | 2002 |
| plant | Populus x canadensis 'Serotina Aurea' | Golden Poplar | 1 | 1995 |
| plant | Populus x canadensis 'Serotina' x candicans | Black Italian Poplar | 2 | 2018 |
| plant | Portulaca oleracea | Common Purslane | 5 | 1991 |
| plant | Potamogeton | a pondweed (unidentified) | 77 | 2017 |
| plant | Potamogeton acutifolius | Sharp-leaved Pondweed | 1 | 2013 |
| plant | Potamogeton berchtoldii | Small Pondweed | 94 | 2018 |
| plant | Potamogeton berchtoldii x acutifolius = P. x sudermanicus | a pondweed | 1 | 2006 |
| plant | Potamogeton coloratus | Fen Pondweed | 102 | 2018 |
| plant | Potamogeton crispus | Curled Pondweed | 235 | 2018 |
| plant | Potamogeton friesii | Flat-stalked Pondweed | 1 | 1940 |
| plant | Potamogeton gramineus | Various-leaved Pondweed | 2 | 2012 |
| plant | Potamogeton lucens | Shining Pondweed | 7 | 2015 |
| plant | Potamogeton lucens x perfoliatus = P. x salicifolius | Willow-leaved Pondweed | 2 | 1940 |
| plant | Potamogeton natans | Broad-leaved Pondweed | 86 | 2018 |
| plant | Potamogeton nodosus | Loddon Pondweed | 70 | 2018 |
| plant | Potamogeton obtusifolius | Blunt-leaved Pondweed | 2 | 2004 |
| plant | Potamogeton pectinatus | Fennel Pondweed | 249 | 2019 |
| plant | Potamogeton perfoliatus | Perfoliate Pondweed | 10 | 2015 |
| plant | Potamogeton polygonifolius | Bog Pondweed | 4 | 1996 |
| plant | Potamogeton pusillus | Lesser Pondweed | 99 | 2015 |
| plant | Potamogeton trichoides | Hairlike Pondweed | 87 | 2015 |
| plant | Potentilla | a cinquefoil (unidentified) | 27 | 2021 |
| plant | Potentilla anglica | Trailing Tormentil | 36 | 2014 |
| plant | Potentilla anglica x reptans = P. x mixta | Hybrid Cinquefoil | 21 | 2019 |
| plant | Potentilla anserina | Silverweed | 3607 | 2021 |
| plant | Potentilla argentea | Hoary Cinquefoil | 3 | 2002 |
| plant | Potentilla erecta | Tormentil | 968 | 2019 |
| plant | Potentilla erecta subsp. erecta | a tormentil | 3 | 2016 |
| plant | Potentilla erecta x anglica = P. x suberecta | a cinquefoil | 1 | 2003 |
| plant | Potentilla fruticosa | Shrubby Cinquefoil | 2 | 2009 |
| plant | Potentilla indica | Yellow-flowered Strawberry | 28 | 2019 |
| plant | Potentilla palustris | Marsh Cinquefoil | 8 | 2022 |
| plant | Potentilla recta | Sulphur Cinquefoil | 17 | 2011 |
| plant | Potentilla reptans | Creeping Cinquefoil | 5367 | 2022 |
| plant | Potentilla sterilis | Barren Strawberry | 1582 | 2020 |
| plant | Potentilla tabernaemontani | Spring Cinquefoil | 117 | 2019 |
| plant | Poterium sanguisorba | a salad burnet | 668 | 2021 |
| plant | Poterium sanguisorba subsp. balearica | Fodder Burnet | 17 | 2016 |
| plant | Poterium sanguisorba subsp. sanguisorba | Salad Burnet | 1611 | 2021 |
| plant | Primula | a primrose, cowslip or oxlip (unidentified) | 29 | 2017 |
| plant | Primula elatior | Oxlip | 2 | 2010 |
| plant | Primula veris | Cowslip | 2638 | 2022 |
| plant | Primula veris x vulgaris = P. x polyantha | False Oxlip | 167 | 2019 |
| plant | Primula vulgaris | Primrose | 2762 | 2022 |
| plant | Proboscidea louisianica | Purple-flowered Devil's-claw | 1 | 1959 |
| plant | Prunella laciniata | Cut-leaved Selfheal | 18 | 2011 |
| plant | Prunella vulgaris | Selfheal | 5203 | 2021 |
| plant | Prunella vulgaris x laciniata = P. x intermedia | Hybrid Self-heal | 8 | 2009 |
| plant | Prunus | a cherry or plum or blackthorn or cherry laurel (unidentified) | 121 | 2021 |
| plant | Prunus avium | Wild Cherry | 1190 | 2021 |
| plant | Prunus cerasifera | Cherry Plum | 152 | 2019 |
| plant | Prunus cerasifera var. pissardii | a cherry plum | 1 | 2019 |
| plant | Prunus cerasus | Dwarf Cherry | 3 | 2004 |
| plant | Prunus (cherry) | a cherry (unidentified) | 219 | 2022 |
| plant | Prunus (cherry laurel) | a cherry laurel (unidentified) | 129 | 2015 |
| plant | Prunus domestica | Wild Plum | 202 | 2019 |
| plant | Prunus domestica subsp. domestica | Plum | 172 | 2018 |
| plant | Prunus domestica subsp. insititia | Damson (or Bullace) | 379 | 2019 |
| plant | Prunus domestica subsp. italica | Greengage | 5 | 2017 |
| plant | Prunus dulcis | Almond | 7 | 2012 |
| plant | Prunus laurocerasus | Cherry Laurel | 603 | 2020 |
| plant | Prunus lusitanica | Portugal Laurel | 124 | 2019 |
| plant | Prunus padus | Bird Cherry | 80 | 2021 |
| plant | Prunus persica | Peach | 13 | 2000 |
| plant | Prunus pissardii | Pissard's Plum | 94 | 2014 |
| plant | Prunus (plum) | a plum (unidentified) | 59 | 2016 |
| plant | Prunus serrulata | Japanese Cherry | 115 | 2018 |
| plant | Prunus spinosa | Blackthorn | 11472 | 2022 |
| plant | Prunus spinosa x domestica = P. x fruticans | a cherry | 27 | 2015 |
| plant | Pseudofumaria alba | Pale Corydalis | 1 | 1997 |
| plant | Pseudofumaria lutea | Yellow Corydalis | 616 | 2020 |
| plant | Pseudosasa japonica | Arrow Bamboo | 4 | 1985 |
| plant | Pseudotsuga menziesii | Douglas Fir | 46 | 2015 |
| plant | Pseudotsuga sp. or Abies sp. (unidentified fir) | a fir (unidentified) | 27 | 2006 |
| plant | Pteridium aquilinum | Bracken | 2217 | 2021 |
| plant | Pteridium aquilinum subsp. aquilinum | a bracken | 3 | 2013 |
| plant | Pteridophyta | a Pteridophyta species (unidentified) | 1 | 2018 |
| plant | Pteris cretica | Ribbon Fern | 8 | 2009 |
| plant | Pteris multifida | a ribbon fern | 6 | 2008 |
| plant | Pteris nipponica | Table Fern | 1 | 2008 |
| plant | Pteris tremula | a fern | 1 | 2014 |
| plant | Pteris umbrosa | Jungle Brake | 1 | 2009 |
| plant | Pterocarya fraxinifolia | Caucasian Wingnut | 11 | 2015 |
| plant | Puccinellia distans | Reflexed Saltmarsh-grass | 79 | 2019 |
| plant | Puccinellia distans subsp. distans | a reflexed saltmarsh-grass | 8 | 2014 |
| plant | Puccinellia maritima | Common Saltmarsh-grass | 264 | 2017 |
| plant | Puccinellia rupestris | Stiff Saltmarsh-grass | 16 | 2002 |
| plant | Pulicaria dysenterica | Common Fleabane | 1608 | 2021 |
| plant | Pulicaria vulgaris | Small Fleabane | 1 | 2021 |
| plant | Pulmonaria | a lungwort (unidentified) | 2 | 2007 |
| plant | Pulmonaria officinalis | Lungwort | 103 | 2020 |
| plant | Pulmonaria saccharata | a Plant | 1 | 2015 |
| plant | Pyracantha | a firethorn (unidentified) | 42 | 2020 |
| plant | Pyracantha coccinea | Firethorn | 155 | 2022 |
| plant | Pyrola minor | Common Wintergreen | 6 | 1993 |
| plant | Pyrus | a pear (unidentified) | 37 | 2020 |
| plant | Pyrus communis | Pear | 103 | 2018 |
| plant | Pyrus communis (sens.lat.) | a wild pear (unidentified) | 65 | 2005 |
| plant | Pyrus pyraster | Wild Pear | 46 | 2020 |
| plant | Pyrus salicifolia | Willow-leaved Pear | 22 | 2007 |
| reptile | Podarcis muralis | Wall Lizard | 17 | 2021 |
| scorpion fly (including snow flea) | Panorpa | a Scorpion Fly (unidentified) | 58 | 2021 |
| scorpion fly (including snow flea) | Panorpa cognata | a scorpion fly | 6 | 2006 |
| scorpion fly (including snow flea) | Panorpa communis | a scorpion fly | 72 | 2021 |
| scorpion fly (including snow flea) | Panorpa germanica | a scorpion fly | 39 | 2021 |
| sea-fan, sea anemone or jellyfish | Physalia physalis | Portuguese Man-of-war | 1 | 2017 |
| slime mould | Paradiachea | a Paradiachea species (unidentified) | 8 | 2014 |
| slime mould | Paradiacheopsis cribrata | a slime mould | 2 | 2008 |
| slime mould | Paradiacheopsis fimbriata | a slime mould | 1 | 2008 |
| slime mould | Paradiacheopsis solitaria | a slime mould | 1 | 2008 |
| slime mould | Perichaena chrysosperma | a slime mould | 7 | 2008 |
| slime mould | Perichaena corticalis | a slime mould | 4 | 2008 |
| slime mould | Perichaena depressa | a slime mould | 1 | 2008 |
| slime mould | Physarum album | a slime mould | 1 | 2008 |
| slime mould | Physarum cinereum | a slime mould | 1 | 2016 |
| slime mould | Physarum leucophaeum | a slime mould | 1 | 1997 |
| slime mould | Physarum leucopus | a slime mould | 1 | 2014 |
| slime mould | Physarum notabile | a slime mould | 1 | 2018 |
| slime mould | Physarum robustum | a slime mould | 1 | 2008 |
| slime mould | Physarum virescens | a slime mould | 1 | 2017 |
| spider | Pachygnatha | a Pachygnatha species (unidentified) | 1 | 2015 |
| spider | Pachygnatha clercki | a long-jawed spider | 28 | 2019 |
| spider | Pachygnatha degeeri | a long-jawed spider | 57 | 2019 |
| spider | Pachygnatha listeri | a long-jawed spider | 1 | 1987 |
| spider | Paidiscura pallens | a comb-footed spider | 48 | 2020 |
| spider | Palliduphantes ericaeus | a money spider | 10 | 2019 |
| spider | Palliduphantes insignis | a money spider | 2 | 2003 |
| spider | Palliduphantes pallidus | a money spider | 6 | 2003 |
| spider | Panamomops sulcifrons | a money spider | 5 | 2004 |
| spider | Parasteatoda lunata | a comb-footed spider | 1 | 2017 |
| spider | Parasteatoda simulans | a comb-footed spider | 1 | 1997 |
| spider | Parasteatoda tepidariorum | a comb-footed spider | 2 | 2012 |
| spider | Pardosa | a Pardosa wolf spider (unidentified) | 30 | 2018 |
| spider | Pardosa agrestis | a wolf spider | 1 | 1998 |
| spider | Pardosa agrestis subsp. purbeckensis | a wolf spider | 1 | 1998 |
| spider | Pardosa amentata | a wolf spider | 37 | 2018 |
| spider | Pardosa hortensis | a wolf spider | 7 | 2012 |
| spider | Pardosa lugubris (sensu lato) | a wolf spider | 3 | 1999 |
| spider | Pardosa monticola | a wolf spider | 9 | 2000 |
| spider | Pardosa nigriceps | a wolf spider | 14 | 1999 |
| spider | Pardosa palustris | a wolf spider | 13 | 2013 |
| spider | Pardosa prativaga | a wolf spider | 11 | 2003 |
| spider | Pardosa proxima | a wolf spider | 2 | 1998 |
| spider | Pardosa pullata | a wolf spider | 45 | 2019 |
| spider | Pardosa saltans | a spider (Araneae) | 3 | 1999 |
| spider | Pelecopsis parallela | a money spider | 2 | 1999 |
| spider | Peponocranium ludicrum | a money spider | 4 | 1999 |
| spider | Philodromidae | a Philodromidae species (unidentified) | 5 | 2020 |
| spider | Philodromus | a Philodromus species (unidentified) | 6 | 2020 |
| spider | Philodromus albidus | a running crab spider | 2 | 2012 |
| spider | Philodromus aureolus | a running crab spider | 9 | 2016 |
| spider | Philodromus cespitum | a running crab spider | 30 | 2020 |
| spider | Philodromus dispar | a running crab spider | 23 | 2020 |
| spider | Philodromus longipalpis | a running crab spider | 1 | 1999 |
| spider | Pholcidae | a Pholcidae species (unidentified) | 6 | 2016 |
| spider | Pholcomma gibbum | a comb-footed spider | 2 | 2013 |
| spider | Pholcus phalangioides | Cobweb Spider | 40 | 2020 |
| spider | Phrurolithus festivus | a running foliage spider | 3 | 2021 |
| spider | Phylloneta impressa | a comb-footed spider | 16 | 2017 |
| spider | Phylloneta sisyphia | Mothercare Spider | 32 | 2015 |
| spider | Pirata hygrophilus | a wolf spider | 6 | 2000 |
| spider | Pirata latitans | a wolf spider | 3 | 2003 |
| spider | Pirata piraticus | a wolf spider | 22 | 2017 |
| spider | Pirata uliginosus | a wolf spider | 1 | 2012 |
| spider | Pisaura | a Pisaura species (unidentified) | 1 | 2015 |
| spider | Pisaura mirabilis | Tent Spider | 255 | 2022 |
| spider | Platnickina tincta | a comb-footed spider | 3 | 2018 |
| spider | Pocadicnemis juncea | a money spider | 3 | 2003 |
| spider | Poeciloneta variegata | a money spider | 1 | 1995 |
| spider | Porrhomma microphthalmum | a money spider | 2 | 1988 |
| spider | Porrhomma oblitum | a money spider | 1 | 2004 |
| spider | Porrhomma pygmaeum | a money spider | 8 | 2003 |
| spider | Pseudeuophrys lanigera | a jumping spider | 17 | 2021 |
| spider | Psilochorus simoni | a daddy-long-legs spider | 1 | 2006 |
| springtail | Podura aquatica | a springtail (Collembola) | 6 | 2018 |
| springtail | Pogonognathellus flavescens | a springtail (Collembola) | 1 | 2015 |
| springtail | Pogonognathellus longicornis | a springtail (Collembola) | 17 | 2019 |
| springtail | Pseudachorutes subcrassus 'group' | a springtail (Collembola) | 2 | 1925 |
| springtail | Ptenothrix atra | a springtail (Collembola) | 1 | 2009 |
| stonefly | Perla bipunctata | a stonefly | 1 | 1977 |
| stonefly | Perlodidae | a Perlodidae stonefly (unidentified) | 2 | 1995 |
| stonefly | Plecoptera | a stonefly (unidentified) | 14 | 2018 |
| tick or mite (acarine) | Phyllocoptes | a Phyllocoptes species (unidentified) | 1 | 2018 |
| tick or mite (acarine) | Phyllocoptes goniothorax | an acarine (Acari) | 5 | 2015 |
| tick or mite (acarine) | Phytoptus | an acarine (unidentified) | 1 | 2018 |
| tick or mite (acarine) | Phytoptus avellanae | an acarine (Acari) | 4 | 2020 |
| tick or mite (acarine) | Piona | a Piona species (unidentified) | 3 | 1991 |
| true fly - | Pachygaster | a Pachygaster species (unidentified) | 1 | 2014 |
| true fly - | Pales pavida | a parasitic fly | 9 | 2017 |
| true fly - | Palloptera | a Palloptera species (unidentified) | 1 | 2012 |
| true fly - | Palloptera ambusta | a fly | 1 | 1948 |
| true fly - | Palloptera muliebris | a fly | 5 | 2021 |
| true fly - | Palloptera quinquemaculata | a fly | 7 | 2018 |
| true fly - | Palloptera saltuum | a fly | 1 | 2001 |
| true fly - | Palloptera scutellata | a fly | 4 | 2013 |
| true fly - | Palloptera trimacula | a fly | 2 | 1999 |
| true fly - | Palloptera umbellatarum | a fly | 9 | 2016 |
| true fly - | Palloptera ustulata | a fly | 6 | 2003 |
| true fly - | Palpomyiini | a Palpomyiini species (unidentified) | 1 | 1983 |
| true fly - | Panzeria anthophila | a parasitic fly | 5 | 2015 |
| true fly - | Panzeria consobrina | a parasitic fly | 1 | 2001 |
| true fly - | Paracoenia fumosa | a shore fly | 1 | 2009 |
| true fly - | Parallelomma paridis | a dung fly | 1 | 2019 |
| true fly - | Paranthomyza nitida | a fly | 1 | 2003 |
| true fly - | Parapiophila vulgaris | a fly | 4 | 2018 |
| true fly - | Paraplatypeza atra | a big-footed fly | 1 | 2000 |
| true fly - | Parydra coarctata | a shore fly | 27 | 2009 |
| true fly - | Parydra fossarum | a shore fly | 8 | 2009 |
| true fly - | Parydra hecate | a shore fly | 11 | 2013 |
| true fly - | Parydra pubera | a shore fly | 2 | 2009 |
| true fly - | Parydra sp. B | a shore fly | 2 | 1999 |
| true fly - | Paykullia maculata | a fly | 2 | 2016 |
| true fly - | Pegomya | a Pegomya species (unidentified) | 5 | 2018 |
| true fly - | Pegomya bicolor | a fly | 6 | 2020 |
| true fly - | Pegomya flavifrons | a fly | 1 | 2013 |
| true fly - | Pegomya geniculata | a fly | 6 | 2003 |
| true fly - | Pegomya hyoscyami | a fly | 1 | 1998 |
| true fly - | Pegomya meridiana | a fly | 1 | 2008 |
| true fly - | Pegomya rufina | a fly | 1 | 2003 |
| true fly - | Pegomya solennis | a fly | 5 | 2020 |
| true fly - | Pegomya steini | a fly | 2 | 2020 |
| true fly - | Pegomya winthemi | a fly | 3 | 2020 |
| true fly - | Pegoplata aestiva | a fly | 17 | 2012 |
| true fly - | Pelatachina tibialis | a parasitic fly | 1 | 1979 |
| true fly - | Pelina aenea | a shore fly | 3 | 2000 |
| true fly - | Peplomyza litura | a fly | 11 | 2020 |
| true fly - | Peribaea setinervis | a parasitic fly | 1 | 1948 |
| true fly - | Pericoma | a Pericoma moth fly (unidentified) | 2 | 1997 |
| true fly - | Pericoma compta | a moth fly | 3 | 2003 |
| true fly - | Pericoma fuliginosa | a moth fly | 4 | 2020 |
| true fly - | Pericoma nubila | a moth fly | 1 | 1983 |
| true fly - | Pericoma pilularia | a moth fly | 2 | 2020 |
| true fly - | Pericoma pseudoexquisita | a moth fly | 1 | 1997 |
| true fly - | Pericoma trifasciata | a moth fly | 2 | 2003 |
| true fly - | Pericoma trivialis | a moth fly | 7 | 2003 |
| true fly - | Periscepsia spathulata | a parasitic fly | 2 | 2015 |
| true fly - | Phalacrotophora berolinensis | a scuttle fly | 1 | 1997 |
| true fly - | Phania funesta | a parasitic fly | 6 | 2022 |
| true fly - | Phaonia | a Phaonia species (unidentified) | 2 | 2020 |
| true fly - | Phaonia bitincta | a muscid fly | 2 | 1959 |
| true fly - | Phaonia canescens | a muscid fly | 1 | 1952 |
| true fly - | Phaonia errans | a muscid fly | 4 | 2020 |
| true fly - | Phaonia gobertii | a muscid fly | 1 | 1997 |
| true fly - | Phaonia incana | a muscid fly | 1 | 2013 |
| true fly - | Phaonia laeta | a muscid fly | 1 | 2020 |
| true fly - | Phaonia magnicornis | a muscid fly | 1 | 1948 |
| true fly - | Phaonia mystica | a muscid fly | 1 | 1948 |
| true fly - | Phaonia pallida | a muscid fly | 11 | 2021 |
| true fly - | Phaonia palpata | a muscid fly | 5 | 2020 |
| true fly - | Phaonia rufipalpis | a muscid fly | 2 | 2020 |
| true fly - | Phaonia rufiventris | a muscid fly | 9 | 2021 |
| true fly - | Phaonia siebecki | a muscid fly | 1 | 1952 |
| true fly - | Phaonia subventa | a muscid fly | 24 | 2021 |
| true fly - | Phaonia tiefii | a muscid fly | 1 | 2020 |
| true fly - | Phaonia trimaculata | a muscid fly | 1 | 1991 |
| true fly - | Phaonia tuguriorum | a muscid fly | 13 | 2021 |
| true fly - | Phaonia valida | a muscid fly | 3 | 2020 |
| true fly - | Phasia hemiptera | a parasitic fly | 24 | 2020 |
| true fly - | Phasia obesa | a parasitic fly | 4 | 2013 |
| true fly - | Phasia pusilla | a parasitic fly | 2 | 2006 |
| true fly - | Pherbellia cinerella | a snail-killing fly | 25 | 2013 |
| true fly - | Pherbellia dorsata | a snail-killing fly | 4 | 2002 |
| true fly - | Pherbellia dubia | a snail-killing fly | 4 | 2001 |
| true fly - | Pherbellia schoenherri | a snail-killing fly | 6 | 2008 |
| true fly - | Pherbellia scutellaris | a snail-killing fly | 6 | 2020 |
| true fly - | Pherbellia ventralis | a snail-killing fly | 2 | 2009 |
| true fly - | Pherbina | a Pherbina species (unidentified) | 1 | 1997 |
| true fly - | Pherbina coryleti | a snail-killing fly | 25 | 2021 |
| true fly - | Philosepedon humeralis | a moth fly | 7 | 2006 |
| true fly - | Philygria flavipes | a shore fly | 2 | 2009 |
| true fly - | Philygria interrupta | a shore fly | 1 | 2002 |
| true fly - | Philygria interstincta | a shore fly | 4 | 2009 |
| true fly - | Philygria picta | a shore fly | 2 | 2009 |
| true fly - | Philygria stictica | a shore fly | 3 | 2009 |
| true fly - | Philygria vittipennis | a shore fly | 1 | 2008 |
| true fly - | Phora atra | a scuttle fly | 9 | 2003 |
| true fly - | Phora tincta | a scuttle fly | 1 | 2004 |
| true fly - | Phorbia bartaki | a fly | 1 | 2013 |
| true fly - | Phorbia fumigata | a fly | 1 | 2001 |
| true fly - | Phorbia nuceicornis | a fly | 1 | 2001 |
| true fly - | Phorbia nuditibia | a fly | 1 | 1957 |
| true fly - | Phryxe nemea | a parasitic fly | 1 | 2008 |
| true fly - | Phryxe vulgaris | a parasitic fly | 9 | 2013 |
| true fly - | Phyllomyza flavitarsis | a fly | 2 | 2020 |
| true fly - | Physiphora alceae | a fly | 1 | 2004 |
| true fly - | Phytobia errans | a leaf-mining fly | 1 | 2004 |
| true fly - | Phyto discrepans | a fly | 1 | 2008 |
| true fly - | Phytoliriomyza melampyga | a leaf-mining fly | 8 | 2019 |
| true fly - | Phyto melanocephala | a fly | 11 | 2006 |
| true fly - | Phytomyza | a Phytomyza species (unidentified) | 10 | 2019 |
| true fly - | Phytomyza agromyzina | a leaf-mining fly | 18 | 2021 |
| true fly - | Phytomyza angelicae | a leaf-mining fly | 2 | 2013 |
| true fly - | Phytomyza aquilegiae | a leaf-mining fly | 1 | 2011 |
| true fly - | Phytomyza chaerophylli | a leaf-mining fly | 5 | 2015 |
| true fly - | Phytomyza cirsii | a leaf-mining fly | 4 | 2021 |
| true fly - | Phytomyza continua | a leaf-mining fly | 1 | 2008 |
| true fly - | Phytomyza conyzae | a leaf-mining fly | 2 | 2001 |
| true fly - | Phytomyza crassiseta | a leaf-mining fly | 4 | 2016 |
| true fly - | Phytomyza cytisi | a leaf-mining fly | 2 | 2020 |
| true fly - | Phytomyza fallaciosa | a leaf-mining fly | 1 | 2020 |
| true fly - | Phytomyza glechomae | a leaf-mining fly | 1 | 2001 |
| true fly - | Phytomyza heracleana | a leaf-mining fly | 1 | 2017 |
| true fly - | Phytomyza ilicis agg. ((unreared/undissected material)) | Holly Leaf Gall Fly | 119 | 2021 |
| true fly - | Phytomyza isais | a leaf-mining fly | 2 | 2015 |
| true fly - | Phytomyza lappae | a leaf-mining fly | 2 | 2013 |
| true fly - | Phytomyza marginella | a leaf-mining fly | 2 | 2020 |
| true fly - | Phytomyza minuscula | a leaf-mining fly | 4 | 2015 |
| true fly - | Phytomyza origani | a leaf-mining fly | 1 | 2006 |
| true fly - | Phytomyza plantaginis | a leaf-mining fly | 7 | 2016 |
| true fly - | Phytomyza ranunculi | a leaf-mining fly | 14 | 2021 |
| true fly - | Phytomyza ranunculivora | a leaf-mining fly | 5 | 2021 |
| true fly - | Phytomyza rufipes | a leaf-mining fly | 1 | 2002 |
| true fly - | Phytomyza solidaginis | a leaf-mining fly | 2 | 2016 |
| true fly - | Phytomyza spondylii | a leaf-mining fly | 5 | 2015 |
| true fly - | Phytomyza varipes | a leaf-mining fly | 2 | 2004 |
| true fly - | Phytomyza vitalbae | a leaf-mining fly | 1 | 2015 |
| true fly - | Phytomyza wahlgreni | a leaf-mining fly | 2 | 2008 |
| true fly - | Phytosciara flavipes | a fly | 11 | 2021 |
| true fly - | Piezura graminicola | a lesser house fly | 1 | 2000 |
| true fly - | Pipizella | a Pipizella species (unidentified) | 2 | 2016 |
| true fly - | Pipunculus campestris | a big-headed fly | 16 | 2021 |
| true fly - | Pipunculus lenis | a big-headed fly | 7 | 2013 |
| true fly - | Pipunculus zugmayeriae | a big-headed fly | 1 | 2001 |
| true fly - | Platycephala planifrons | a fly | 1 | 1999 |
| true fly - | Platymya fimbriata | a parasitic fly | 1 | 2001 |
| true fly - | Platypeza consobrina | a big-footed fly | 1 | 2010 |
| true fly - | Platystomatidae | a Platystomatidae species (unidentified) | 1 | 2014 |
| true fly - | Plectanocnema nudipes | a scuttle fly | 1 | 1972 |
| true fly - | Polietes lardarius | a muscid fly | 3 | 2003 |
| true fly - | Polietes meridionalis | a muscid fly | 2 | 2020 |
| true fly - | Pollenia | a cluster fly (unidentified) | 8 | 2019 |
| true fly - | Pollenia rudis | a cluster fly | 22 | 2020 |
| true fly - | Polyporivora picta | a big-footed fly | 1 | 2016 |
| true fly - | Prochyliza varipes | a fly | 1 | 2002 |
| true fly - | Prosena siberita | a parasitic fly | 2 | 2013 |
| true fly - | Protocalliphora azurea | a blue bottle or green bottle | 3 | 2016 |
| true fly - | Protoclythia | a Protoclythia species (unidentified) | 1 | 2017 |
| true fly - | Protoclythia modesta | a big-footed fly | 3 | 2003 |
| true fly - | Protoclythia rufa | a big-footed fly | 1 | 2000 |
| true fly - | Pseudacteon formicarum | a scuttle fly | 1 | 2008 |
| true fly - | Pseudocollinella septentrionalis | a lesser dung fly | 3 | 2003 |
| true fly - | Pseudolyciella | a Pseudolyciella species (unidentified) | 1 | 2021 |
| true fly - | Pseudolyciella pallidiventris | a fly | 2 | 2001 |
| true fly - | Pseudonapomyza atra | a leaf-mining fly | 3 | 2004 |
| true fly - | Psila | a Psila species (unidentified) | 1 | 2011 |
| true fly - | Psila fimetaria | a fly | 5 | 2015 |
| true fly - | Psilopa nigritella | a shore fly | 1 | 2004 |
| true fly - | Psilopa nitidula | a shore fly | 6 | 2008 |
| true fly - | Psychoda | a Psychoda species (unidentified) | 3 | 2021 |
| true fly - | Psychoda cinerea | a moth fly | 4 | 2021 |
| true fly - | Psychoda grisescens | a moth fly | 1 | 1982 |
| true fly - | Psychoda phalaenoides | a moth fly | 28 | 2021 |
| true fly - | Psychodidae | a mothfly (unidentified) | 18 | 2013 |
| true fly - | Pteremis fenestralis | a lesser dung fly | 1 | 1994 |
| true fly - | Ptychoptera | a Ptychoptera species (unidentified) | 4 | 2004 |
| true fly - | Ptychoptera albimana | a fly | 16 | 2021 |
| true fly - | Ptychoptera contaminata | a fly | 17 | 2021 |
| true fly - | Ptychoptera lacustris | a fly | 3 | 2000 |
| true fly - | Ptychoptera longicauda | a fly | 1 | 1992 |
| true fly - | Ptychopteridae | a Ptychopteridae fly (unidentified) | 8 | 1997 |
| true fly - | Pyrophaena | a Pyrophaena species (unidentified) | 1 | 1999 |
| true fly - cranefly | Paradelphomyia senilis | a cranefly | 5 | 2003 |
| true fly - cranefly | Pedicia littoralis | a cranefly | 1 | 2000 |
| true fly - cranefly | Pedicia rivosa | a cranefly | 3 | 2001 |
| true fly - cranefly | Phylidorea ferruginea | a cranefly | 20 | 2021 |
| true fly - cranefly | Phylidorea fulvonervosa | a cranefly | 1 | 1983 |
| true fly - cranefly | Pilaria discicollis | a cranefly | 5 | 2002 |
| true fly - cranefly | Pilaria fuscipennis | a cranefly | 1 | 2000 |
| true fly - cranefly | Pseudolimnophila lucorum | a cranefly | 1 | 2002 |
| true fly - cranefly | Pseudolimnophila sepium | a cranefly | 1 | 2001 |
| true fly - (diptera) | Paradelia intersecta | an insect - true fly (Diptera) | 2 | 2021 |
| true fly - (diptera) | Pegoplata annulata | an insect - true fly (Diptera) | 3 | 2006 |
| true fly - (diptera) | Pegoplata infirma | an insect - true fly (Diptera) | 11 | 2021 |
| true fly - (diptera) | Phasia barbifrons | an insect - true fly (Diptera) | 1 | 2008 |
| true fly - (diptera) | Phytomyza fulgens | an insect - true fly (Diptera) | 4 | 2015 |
| true fly - (diptera) | Phytomyza hellebori | an insect - true fly (Diptera) | 1 | 2020 |
| true fly - (diptera) | Phytomyza pastinacae | an insect - true fly (Diptera) | 1 | 2020 |
| true fly - (diptera) | Phytomyza rostrata | an insect - true fly (Diptera) | 2 | 2008 |
| true fly - (diptera) | Phytomyza soenderupi | an insect - true fly (Diptera) | 1 | 2000 |
| true fly - (diptera) | Phytomyza sphondyliivora | an insect - true fly (Diptera) | 3 | 2021 |
| true fly - (diptera) | Pollenia angustigena | an insect - true fly (Diptera) | 5 | 2020 |
| true fly - (diptera) | Pollenia pediculata | an insect - true fly (Diptera) | 8 | 2013 |
| true fly - (diptera) | Pseudocollinella humida | an insect - true fly (Diptera) | 2 | 2002 |
| true fly - (diptera) | Pseudolyciella stylata | an insect - true fly (Diptera) | 4 | 2009 |
| true fly - fly | Pherbellia annulipes | a snail-killing fly | 4 | 2006 |
| true fly - fly | Pherbellia griseola | a snail-killing fly | 4 | 1984 |
| true fly - fly | Pherbellia nana | a snail-killing fly | 4 | 2009 |
| true fly - fly | Psacadina verbekei | a snail-killing fly | 2 | 2001 |
| true fly - fly | Pteromicra glabricula | a snail-killing fly | 1 | 2001 |
| true fly - hoverfly | Paragus | a Paragus hoverfly (unidentified) | 3 | 2016 |
| true fly - hoverfly | Paragus haemorrhous | a hoverfly | 23 | 2013 |
| true fly - hoverfly | Parasyrphus annulatus | a hoverfly | 1 | 1970 |
| true fly - hoverfly | Parasyrphus punctulatus | a hoverfly | 20 | 2017 |
| true fly - hoverfly | Parhelophilus frutetorum | a hoverfly | 10 | 2011 |
| true fly - hoverfly | Parhelophilus versicolor | a hoverfly | 11 | 2009 |
| true fly - hoverfly | Pipiza | a Pipiza hoverfly (unidentified) | 2 | 2018 |
| true fly - hoverfly | Pipiza austriaca | a hoverfly | 15 | 2013 |
| true fly - hoverfly | Pipiza fasciata | a hoverfly | 2 | 1941 |
| true fly - hoverfly | Pipiza lugubris | a hoverfly | 2 | 2015 |
| true fly - hoverfly | Pipiza luteitarsis | a hoverfly | 9 | 2001 |
| true fly - hoverfly | Pipiza noctiluca | a hoverfly | 36 | 2021 |
| true fly - hoverfly | Pipiza notata | a hoverfly | 7 | 1945 |
| true fly - hoverfly | Pipizella viduata | a hoverfly | 44 | 2021 |
| true fly - hoverfly | Pipizella virens | a hoverfly | 24 | 2006 |
| true fly - hoverfly | Platycheirus | a Platycheirus hoverfly (unidentified) | 10 | 2019 |
| true fly - hoverfly | Platycheirus albimanus | a hoverfly | 189 | 2021 |
| true fly - hoverfly | Platycheirus ambiguus | a hoverfly | 19 | 2020 |
| true fly - hoverfly | Platycheirus angustatus | a hoverfly | 33 | 2021 |
| true fly - hoverfly | Platycheirus clypeatus | a hoverfly | 60 | 2021 |
| true fly - hoverfly | Platycheirus clypeatus agg. | a hoverfly | 15 | 2005 |
| true fly - hoverfly | Platycheirus discimanus | a hoverfly | 1 | 1932 |
| true fly - hoverfly | Platycheirus europaeus | a hoverfly | 1 | 2021 |
| true fly - hoverfly | Platycheirus fulviventris | a hoverfly | 19 | 2015 |
| true fly - hoverfly | Platycheirus granditarsus | a hoverfly | 53 | 2021 |
| true fly - hoverfly | Platycheirus manicatus | a hoverfly | 33 | 2021 |
| true fly - hoverfly | Platycheirus nielseni | a hoverfly | 1 | 2008 |
| true fly - hoverfly | Platycheirus occultus | a hoverfly | 9 | 2021 |
| true fly - hoverfly | Platycheirus peltatus | a hoverfly | 30 | 2021 |
| true fly - hoverfly | Platycheirus peltatus agg. | a hoverfly | 1 | 1987 |
| true fly - hoverfly | Platycheirus rosarum | a hoverfly | 45 | 2021 |
| true fly - hoverfly | Platycheirus scutatus | a hoverfly | 48 | 2021 |
| true fly - hoverfly | Platycheirus splendidus | a hoverfly | 1 | 2001 |
| true fly - hoverfly | Platycheirus sticticus | a hoverfly | 1 | 2019 |
| true fly - hoverfly | Platycheirus tarsalis | a hoverfly | 9 | 2002 |
| true fly - hoverfly | Pocota personata | a hoverfly | 2 | 2010 |
| true fly - hoverfly | Portevinia maculata | Ramsons Hoverfly | 41 | 2019 |
| true fly - midge, gnat or mosquito | Palaeodocosia flava | a fungus gnat | 1 | 1987 |
| true fly - midge, gnat or mosquito | Palaeodocosia vittata | a fungus gnat | 1 | 2021 |
| true fly - midge, gnat or mosquito | Palpomyia flavipes | a biting midge | 1 | 1983 |
| true fly - midge, gnat or mosquito | Palpomyia serripes | a biting midge | 2 | 1983 |
| true fly - midge, gnat or mosquito | Phronia biarcuata | a fungus gnat | 2 | 2001 |
| true fly - midge, gnat or mosquito | Phronia braueri | a fungus gnat | 2 | 2001 |
| true fly - midge, gnat or mosquito | Phronia conformis | a fungus gnat | 5 | 2021 |
| true fly - midge, gnat or mosquito | Phronia exigua | a fungus gnat | 1 | 2000 |
| true fly - midge, gnat or mosquito | Phronia humeralis | a fungus gnat | 3 | 2001 |
| true fly - midge, gnat or mosquito | Phronia nigricornis | a fungus gnat | 1 | 2000 |
| true fly - midge, gnat or mosquito | Phronia notata | a fungus gnat | 2 | 2021 |
| true fly - midge, gnat or mosquito | Phronia strenua | a fungus gnat | 1 | 2000 |
| true fly - midge, gnat or mosquito | Phronia tenuis | a fungus gnat | 2 | 2020 |
| true fly - midge, gnat or mosquito | Phthinia humilis | a fungus gnat | 1 | 2000 |
| true fly - midge, gnat or mosquito | Phthinia mira | a fungus gnat | 1 | 2000 |
| true fly - midge, gnat or mosquito | Phthinia winnertzi | a fungus gnat | 1 | 2000 |
| true fly - midge, gnat or mosquito | Physemocecis hartigi | a gall midge | 1 | 2011 |
| true fly - midge, gnat or mosquito | Platyura marginata | a fungus gnat | 3 | 2021 |
| true fly - midge, gnat or mosquito | Polypedilum arundineti | a non-biting midge | 2 | 1983 |
| true fly - midge, gnat or mosquito | Procladius | a Procladius non-biting midge (unidentified) | 1 | 1983 |
| true fly - midge, gnat or mosquito | Psectrotanypus varius | a non-biting midge | 2 | 2000 |
| true fly - midge, gnat or mosquito | Pseudexechia trisignata | a fungus gnat | 1 | 2003 |
| true fly - midge, gnat or mosquito | Pseudobrachypeza helvetica | a fungus gnat | 6 | 2001 |
| true fly - midge, gnat or mosquito | Pseudorthocladius curtistylus | a non-biting midge | 1 | 1983 |
| true fly - midge, gnat or mosquito | Pseudosmittia trilobata | a non-biting midge | 1 | 1983 |
| true fly - midge, gnat or mosquito | Putoniella pruni | a gall midge | 1 | 1997 |
| true fly - midge, gnat or mosquito | Pyratula perpusilla | a fungus gnat | 1 | 1995 |
| true fly - picture-winged, conopid or stilt-legged fly | Philophylla caesio | a gall fly | 6 | 2001 |
| true fly - picture-winged, conopid or stilt-legged fly | Physocephala rufipes | a fly | 30 | 2020 |
| true fly - robber, empid or dolichopid fly | Phyllodromia melanocephala | a dance fly | 4 | 2020 |
| true fly - robber, empid or dolichopid fly | Platypalpus | aPlatypalpus dance fly (unidentified) | 2 | 2015 |
| true fly - robber, empid or dolichopid fly | Platypalpus agilis | a dance fly | 8 | 2020 |
| true fly - robber, empid or dolichopid fly | Platypalpus albifacies | a dance fly | 1 | 2001 |
| true fly - robber, empid or dolichopid fly | Platypalpus annulatus | a dance fly | 1 | 2000 |
| true fly - robber, empid or dolichopid fly | Platypalpus annulipes | a dance fly | 7 | 2009 |
| true fly - robber, empid or dolichopid fly | Platypalpus aristatus | a dance fly | 1 | 2001 |
| true fly - robber, empid or dolichopid fly | Platypalpus calceatus | a dance fly | 17 | 2013 |
| true fly - robber, empid or dolichopid fly | Platypalpus candicans | a dance fly | 8 | 2006 |
| true fly - robber, empid or dolichopid fly | Platypalpus ciliaris | a dance fly | 2 | 2020 |
| true fly - robber, empid or dolichopid fly | Platypalpus clarandus | a dance fly | 1 | 1999 |
| true fly - robber, empid or dolichopid fly | Platypalpus cothurnatus | a dance fly | 3 | 2008 |
| true fly - robber, empid or dolichopid fly | Platypalpus cryptospina | a dance fly | 3 | 2006 |
| true fly - robber, empid or dolichopid fly | Platypalpus exilis | a dance fly | 3 | 2006 |
| true fly - robber, empid or dolichopid fly | Platypalpus fasciatus | a dance fly | 8 | 2006 |
| true fly - robber, empid or dolichopid fly | Platypalpus flavicornis | a dance fly | 1 | 2008 |
| true fly - robber, empid or dolichopid fly | Platypalpus incertus | a dance fly | 4 | 2006 |
| true fly - robber, empid or dolichopid fly | Platypalpus kirtlingensis | a dance fly | 1 | 2001 |
| true fly - robber, empid or dolichopid fly | Platypalpus leucothrix | a dance fly | 2 | 2006 |
| true fly - robber, empid or dolichopid fly | Platypalpus longicornis | a dance fly | 8 | 2020 |
| true fly - robber, empid or dolichopid fly | Platypalpus longiseta | a dance fly | 17 | 2009 |
| true fly - robber, empid or dolichopid fly | Platypalpus luteicornis | a dance fly | 1 | 1973 |
| true fly - robber, empid or dolichopid fly | Platypalpus luteus | a dance fly | 1 | 2006 |
| true fly - robber, empid or dolichopid fly | Platypalpus major | a dance fly | 2 | 2003 |
| true fly - robber, empid or dolichopid fly | Platypalpus mikii | a dance fly | 2 | 2000 |
| true fly - robber, empid or dolichopid fly | Platypalpus minutus | a dance fly | 12 | 2009 |
| true fly - robber, empid or dolichopid fly | Platypalpus notatus | a dance fly | 2 | 1979 |
| true fly - robber, empid or dolichopid fly | Platypalpus optivus | a dance fly | 3 | 2013 |
| true fly - robber, empid or dolichopid fly | Platypalpus pallidicornis | a dance fly | 9 | 2009 |
| true fly - robber, empid or dolichopid fly | Platypalpus pallidiventris | a dance fly | 31 | 2021 |
| true fly - robber, empid or dolichopid fly | Platypalpus pallipes | a dance fly | 5 | 2006 |
| true fly - robber, empid or dolichopid fly | Platypalpus parvicauda | a dance fly | 1 | 2001 |
| true fly - robber, empid or dolichopid fly | Platypalpus pectoralis | a dance fly | 8 | 2020 |
| true fly - robber, empid or dolichopid fly | Platypalpus pictitarsis | a dance fly | 1 | 1978 |
| true fly - robber, empid or dolichopid fly | Platypalpus politus | a dance fly | 3 | 2013 |
| true fly - robber, empid or dolichopid fly | Platypalpus stabilis | a dance fly | 2 | 2009 |
| true fly - robber, empid or dolichopid fly | Platypalpus tonsus | a dance fly | 2 | 2006 |
| true fly - robber, empid or dolichopid fly | Poecilobothrus chrysozygos | a dolichopodid fly | 3 | 2009 |
| true fly - robber, empid or dolichopid fly | Poecilobothrus nobilitatus | a dolichopodid fly | 77 | 2021 |
| true fly - soldier or snipe fly | Pachygaster atra | a soldier fly | 37 | 2020 |
| true fly - soldier or snipe fly | Pachygaster leachii | a soldier fly | 37 | 2020 |
| true fly - soldier or snipe fly | Ptiolina obscura | a snipe fly | 1 | 1995 |
| woodlouse | Philoscia muscorum | Common Striped Woodlouse | 144 | 2020 |
| woodlouse | Platyarthrus hoffmannseggii | Ant Woodlouse | 18 | 2020 |
| woodlouse | Porcellio dilatatus | a woodlouse | 1 | 2018 |
| woodlouse | Porcellio laevis | a woodlouse | 1 | 1987 |
| woodlouse | Porcellionides pruinosus | a woodlouse | 1 | 1948 |
| woodlouse | Porcellio scaber | Common Rough Woodlouse | 197 | 2020 |
| woodlouse | Porcellio spinicornis | a woodlouse | 12 | 2020 |
| woodlouse | Proasellus meridianus | a water slater | 7 | 2011 |
| worm | Perinereis cultrifera | Ragworm | 1 | 2013 |
| worm | Pherusa plumosa | an annelid | 1 | 1973 |
| worm | Placobdella costata | an annelid | 1 | 2011 |
| worm | Platynereis dumerilii | an annelid | 1 | 1940 |
| worm | Polydora ciliata | an annelid | 3 | 1973 |
| worm | Pygospio elegans | an annelid | 7 | 1976 |