Welshman's Button Caddisfly
- Group
- Caddisflies
- Peak month
- April
- Records since 2000
- 22,673
Described in 1826
138 species
Boring sponge
- Group
- Sponges
- Peak month
- June
- Records since 2000
- 11,493
Seedcorn Maggot
- Group
- True flies
- Peak month
- July
- Records since 2000
- 6,186
Square-tailed Worm
- Group
- Worms (annelids)
- Peak month
- April
- Records since 2000
- 4,751
Pegoplata aestiva
- Group
- True flies
- Peak month
- July
- Records since 2000
- 4,289
Pegoplata infirma
- Group
- True flies
- Peak month
- July
- Records since 2000
- 3,287
Chorizopora brongniartii
- Group
- Bryozoans
- Peak month
- August
- Records since 2000
- 2,892
Botanophila fugax
- Group
- True flies
- Peak month
- July
- Records since 2000
- 2,781
Nectoporus sanmarkii
- Group
- Beetles
- Peak month
- April
- Records since 2000
- 2,581
Green Worm
- Group
- Worms (annelids)
- Peak month
- April
- Records since 2000
- 2,506
Fannia armata
- Group
- True flies
- Peak month
- June
- Records since 2000
- 2,275
Gall midge
- Group
- True flies
- Peak month
- May
- Records since 2000
- 2,174
Grey Worm
- Group
- Worms (annelids)
- Peak month
- October
- Records since 2000
- 2,160
Dasyphora cyanella
- Group
- True flies
- Peak month
- April
- Records since 2000
- 2,144
Pfeiffer's amber snail
- Group
- Molluscs
- Peak month
- May
- Records since 2000
- 1,973
European Cinchbug
- Group
- True bugs
- Peak month
- May
- Records since 2000
- 1,703
Blow Fly
- Group
- True flies
- Peak month
- August
- Records since 2000
- 1,486
Rosy-tip Worm
- Group
- Worms (annelids)
- Peak month
- April
- Records since 2000
- 1,481
Hylemyza partita
- Group
- True flies
- Peak month
- July
- Records since 2000
- 1,457
Phaonia errans
- Group
- True flies
- Peak month
- May
- Records since 2000
- 1,306
Chestnut Worm
- Group
- Worms (annelids)
- Peak month
- April
- Records since 2000
- 1,255
Sarcophaga nigriventris
- Group
- True flies
- Peak month
- July
- Records since 2000
- 1,253
Long-toothed Herald Snail
- Group
- Molluscs
- Peak month
- May
- Records since 2000
- 1,233
Ormosia nodulosa
- Group
- True flies
- Peak month
- June
- Records since 2000
- 1,129
Minettia fasciata
- Group
- True flies
- Peak month
- July
- Records since 2000
- 1,099
Leistus fulvibarbis
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 1,081
Callopora dumerilii
- Group
- Bryozoans
- Peak month
- August
- Records since 2000
- 1,030
Fenestrulina malusii
- Group
- Bryozoans
- Peak month
- May
- Records since 2000
- 870
Sarcophaga vagans
- Group
- True flies
- Peak month
- July
- Records since 2000
- 855
Hydrophoria ruralis
- Group
- True flies
- Peak month
- July
- Records since 2000
- 853
Paradelia intersecta
- Group
- True flies
- Peak month
- April
- Records since 2000
- 745
Arthaldeus pascuellus
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 743
Little Black Blowfly
- Group
- True flies
- Peak month
- July
- Records since 2000
- 671
Herina lugubris
- Group
- True flies
- Peak month
- July
- Records since 2000
- 665
Sarcophaga dissimilis
- Group
- True flies
- Peak month
- July
- Records since 2000
- 640
Scathophaga inquinata
- Group
- True flies
- Peak month
- May
- Records since 2000
- 631
Cockspur [worm]
- Group
- Worms (annelids)
- Peak month
- October
- Records since 2000
- 629
Hydroporus striola
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 604
Pegomya solennis
- Group
- True flies
- Peak month
- July
- Records since 2000
- 601
Sarcophaga haemorrhoa
- Group
- True flies
- Peak month
- July
- Records since 2000
- 593
Hebecnema umbratica
- Group
- True flies
- Peak month
- July
- Records since 2000
- 578
Hairy-legged Horsefly
- Group
- True flies
- Peak month
- June
- Records since 2000
- 550
Eurasian Running Crab Spider
- Group
- Spiders
- Peak month
- May
- Records since 2000
- 530
Ornate Brigadier
- Group
- True flies
- Peak month
- June
- Records since 2000
- 503
Little Tree Worm
- Group
- Worms (annelids)
- Peak month
- April
- Records since 2000
- 492
Stilt Sandpiper
- Group
- Birds
- Peak month
- August
- Records since 2000
- 473
Peplomyza litura
- Group
- True flies
- Peak month
- June
- Records since 2000
- 465
Minettia inusta
- Group
- True flies
- Peak month
- June
- Records since 2000
- 464
Blue-grey Worm
- Group
- Worms (annelids)
- Peak month
- April
- Records since 2000
- 463
Sepsis fulgens
- Group
- True flies
- Peak month
- July
- Records since 2000
- 463
Dendrobaena octaedra
- Group
- Worms (annelids)
- Peak month
- April
- Records since 2000
- 436
Sarcophaga pumila
- Group
- True flies
- Peak month
- July
- Records since 2000
- 428
Norellia spinipes
- Group
- True flies
- Peak month
- March
- Records since 2000
- 413
Ceutorhynchus contractus
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 374
Blackneck
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 365
Mydaea urbana
- Group
- True flies
- Peak month
- July
- Records since 2000
- 342
Cleigastra apicalis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 333
Pherbellia schoenherri
- Group
- True flies
- Peak month
- July
- Records since 2000
- 331
Alebra albostriella
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 326
Eisenia fetida
- Group
- Worms (annelids)
- Peak month
- April
- Records since 2000
- 326
Hylemya nigrimanus
- Group
- True flies
- Peak month
- May
- Records since 2000
- 318
Haliclona cinerea
- Group
- Sponges
- Peak month
- September
- Records since 2000
- 317
Ancistrocerus scoticus
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 277
Sarcophaga melanura
- Group
- True flies
- Peak month
- August
- Records since 2000
- 268
Phorbia fumigata
- Group
- True flies
- Peak month
- May
- Records since 2000
- 266
Rhombosepion orbignyanum
- Group
- Molluscs
- Peak month
- July
- Records since 2000
- 264
Herina nigrina
- Group
- True flies
- Peak month
- July
- Records since 2000
- 257
Oreodytes septentrionalis
- Group
- Beetles
- Peak month
- September
- Records since 2000
- 249
Amaurosoma fasciatum
- Group
- True flies
- Peak month
- May
- Records since 2000
- 245
Hydrotaea militaris
- Group
- True flies
- Peak month
- June
- Records since 2000
- 233
Melieria omissa
- Group
- True flies
- Peak month
- July
- Records since 2000
- 230
Greater Sand Plover
- Group
- Birds
- Peak month
- July
- Records since 2000
- 224
Gastrolepta anthracina
- Group
- True flies
- Peak month
- July
- Records since 2000
- 223
Lumbricus festivus
- Group
- Worms (annelids)
- Peak month
- April
- Records since 2000
- 223
Sapromyza sexpunctata
- Group
- True flies
- Peak month
- July
- Records since 2000
- 222
Leuconia nivea
- Group
- Sponges
- Peak month
- September
- Records since 2000
- 221
Four-barred Knapweed Gall Fly
- Group
- True flies
- Peak month
- July
- Records since 2000
- 215
Sarcophaga sinuata
- Group
- True flies
- Peak month
- July
- Records since 2000
- 211
Hydrophoria linogrisea
- Group
- True flies
- Peak month
- May
- Records since 2000
- 209
Cordilura ciliata
- Group
- True flies
- Peak month
- July
- Records since 2000
- 208
Sepsis flavimanus
- Group
- True flies
- Peak month
- July
- Records since 2000
- 205
Leptocera fontinalis
- Group
- True flies
- Peak month
- July
- Records since 2000
- 202
Themira annulipes
- Group
- True flies
- Peak month
- June
- Records since 2000
- 197
Phaonia serva
- Group
- True flies
- Peak month
- May
- Records since 2000
- 194
Helina obscurata
- Group
- True flies
- Peak month
- July
- Records since 2000
- 187
Ancistrocerus nigricornis
- Group
- Bees, wasps and ants
- Peak month
- August
- Records since 2000
- 179
Herina palustris
- Group
- True flies
- Peak month
- July
- Records since 2000
- 171
Melieria picta
- Group
- True flies
- Peak month
- July
- Records since 2000
- 164
Calliopum elisae
- Group
- True flies
- Peak month
- June
- Records since 2000
- 162
Pegomya winthemi
- Group
- True flies
- Peak month
- July
- Records since 2000
- 162
Egle minuta
- Group
- True flies
- Peak month
- April
- Records since 2000
- 161
Spilogona denigrata
- Group
- True flies
- Peak month
- June
- Records since 2000
- 156
Scathophaga spurca
- Group
- True flies
- Peak month
- October
- Records since 2000
- 151
Gonia ornata
- Group
- True flies
- Peak month
- April
- Records since 2000
- 139
Limnophora maculosa
- Group
- True flies
- Peak month
- May
- Records since 2000
- 134
Collarina balzaci
- Group
- Bryozoans
- Peak month
- April
- Records since 2000
- 132
Lucilia silvarum
- Group
- True flies
- Peak month
- June
- Records since 2000
- 132
Coenosia means
- Group
- True flies
- Peak month
- June
- Records since 2000
- 131
Macrogastra rolphii
- Group
- Molluscs
- Peak month
- October
- Records since 2000
- 128
Lucilia illustris
- Group
- True flies
- Peak month
- August
- Records since 2000
- 127
Aporrectodea icterica
- Group
- Worms (annelids)
- Peak month
- April
- Records since 2000
- 126
Zaphne divisa
- Group
- True flies
- Peak month
- June
- Records since 2000
- 125
Cordilura pudica
- Group
- True flies
- Peak month
- June
- Records since 2000
- 124
Estheria cristata
- Group
- True flies
- Peak month
- July
- Records since 2000
- 118
Tipula irrorata
- Group
- True flies
- Peak month
- July
- Records since 2000
- 118
Physarum album
- Group
- Microorganisms and protists
- Peak month
- September
- Records since 2000
- 113
Paederus fuscipes
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 112
Sepsis violacea
- Group
- True flies
- Peak month
- June
- Records since 2000
- 110
Coenosia albicornis
- Group
- True flies
- Peak month
- May
- Records since 2000
- 108
Cricotopus triannulatus
- Group
- True flies
- Peak month
- April
- Records since 2000
- 104
Caricea alma
- Group
- True flies
- Peak month
- April
- Records since 2000
- 103
Paradromius longiceps
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 103
Simulium vernum
- Group
- True flies
- Peak month
- September
- Records since 2000
- 103
Thricops cunctans
- Group
- True flies
- Peak month
- June
- Records since 2000
- 100
Fannia manicata
- Group
- True flies
- Peak month
- April
- Records since 2000
- 92
Ozyptila brevipes
- Group
- Spiders
- Peak month
- July
- Records since 2000
- 92
Palloptera trimacula
- Group
- True flies
- Peak month
- August
- Records since 2000
- 88
Phorbia sepia
- Group
- True flies
- Peak month
- April
- Records since 2000
- 87
Mydaea ancilla
- Group
- True flies
- Peak month
- May
- Records since 2000
- 86
Trypeta zoe
- Group
- True flies
- Peak month
- May
- Records since 2000
- 82
Musculus costulatus
- Group
- Molluscs
- Peak month
- July
- Records since 2000
- 80
Helina pertusa
- Group
- True flies
- Peak month
- May
- Records since 2000
- 79
Dithryca guttularis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 75
Coenosia rufipalpis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 74
Sapromyza hyalinata
- Group
- True flies
- Peak month
- June
- Records since 2000
- 74
Notiophilus quadripunctatus
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 72
Audouin's Gull
- Group
- Birds
- Peak month
- May
- Records since 2000
- 68
Mycomya cinerascens
- Group
- True flies
- Peak month
- June
- Records since 2000
- 66
Trichopalpus fraternus
- Group
- True flies
- Peak month
- June
- Records since 2000
- 61
Haplopoma impressum
- Group
- Bryozoans
- Peak month
- September
- Records since 2000
- 60
Hebecnema fumosa
- Group
- True flies
- Peak month
- May
- Records since 2000
- 60
Azelia gibbera
- Group
- True flies
- Peak month
- June
- Records since 2000
- 59
Tanais dulongii
- Group
- Crustaceans
- Peak month
- September
- Records since 2000
- 58
Botanophila dissecta
- Group
- True flies
- Peak month
- May
- Records since 2000
- 55
Tiger Fly
- Group
- True flies
- Peak month
- July
- Records since 2000
- 55
Spilogona pacifica
- Group
- True flies
- Peak month
- July
- Records since 2000
- 54
Cordilura rufimanus
- Group
- True flies
- Peak month
- June
- Records since 2000
- 52
Hydroporus figuratus
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 50