Great Green Bush Cricket
- Group
- Grasshoppers and crickets
- Records since 2000
- 2,380
- Scientific name
- Tettigonia viridissima
Smudge-veined Fen Fly
- Group
- True flies
- Records since 2000
- 2,378
- Scientific name
- Neoascia podagrica
Short-winged Conehead
- Group
- Grasshoppers and crickets
- Records since 2000
- 2,376
- Scientific name
- Conocephalus dorsalis
Canary-shouldered Thorn
- Group
- Butterflies and moths
- Records since 2000
- 2,373
- Scientific name
- Ennomos alniaria
Tripos furca
- Group
- Microorganisms and protists
- Records since 2000
- 2,372
- Peak month
- August
Deadman's finger
- Group
- Sponges
- Records since 2000
- 2,367
- Scientific name
- Haliclona oculata
Pale-saddled Leucozona
- Group
- True flies
- Records since 2000
- 2,361
- Scientific name
- Leucozona glaucia
Dwarf swimming crab
- Group
- Crustaceans
- Records since 2000
- 2,342
- Scientific name
- Liocarcinus pusillus
Arctic cancellate chiton
- Group
- Molluscs
- Records since 2000
- 2,332
- Scientific name
- Leptochiton cancellatus
Upogebia deltaura
- Group
- Crustaceans
- Records since 2000
- 2,332
- Peak month
- August
Escharella ventricosa
- Group
- Bryozoans
- Records since 2000
- 2,329
- Peak month
- August
Osier
- Group
- Flowering plants
- Records since 2000
- 2,328
- Scientific name
- Salix viminalis
Small-Ear Fileclam
- Group
- Molluscs
- Records since 2000
- 2,321
- Scientific name
- Limatula subauriculata
Common Tiger Fly
- Group
- True flies
- Records since 2000
- 2,317
- Scientific name
- Coenosia tigrina
Bedeguar Gall Causer
- Group
- Bees, wasps and ants
- Records since 2000
- 2,311
- Scientific name
- Diplolepis rosae
Eupolymnia nesidensis
- Group
- Worms (annelids)
- Records since 2000
- 2,307
- Peak month
- August
Phasia hemiptera
- Group
- True flies
- Records since 2000
- 2,302
- Peak month
- August
Gold Spot
- Group
- Butterflies and moths
- Records since 2000
- 2,286
- Scientific name
- Plusia festucae
Swallow Prominent
- Group
- Butterflies and moths
- Records since 2000
- 2,271
- Scientific name
- Pheosia tremula
Deraeocoris lutescens
- Group
- True bugs
- Records since 2000
- 2,268
- Peak month
- August
Alpine Water-moss
- Group
- Mosses
- Records since 2000
- 2,254
- Scientific name
- Fontinalis squamosa
Oak Hook-tip
- Group
- Butterflies and moths
- Records since 2000
- 2,249
- Scientific name
- Watsonalla binaria
Muscid fly
- Group
- True flies
- Records since 2000
- 2,228
- Scientific name
- Graphomya maculata
Diplosoma spongiforme
- Group
- Sea squirts
- Records since 2000
- 2,224
- Peak month
- August
Common Copperback
- Group
- True flies
- Records since 2000
- 2,218
- Scientific name
- Ferdinandea cuprea
Scotch Rose
- Group
- Flowering plants
- Records since 2000
- 2,211
- Scientific name
- Rosa spinosissima
Gammaropsis maculata
- Group
- Crustaceans
- Records since 2000
- 2,202
- Peak month
- August
Circular crab
- Group
- Crustaceans
- Records since 2000
- 2,199
- Scientific name
- Atelecyclus rotundatus
Lumbrineriopsis paradoxa
- Group
- Worms (annelids)
- Records since 2000
- 2,197
- Peak month
- August
Six-striped Rustic
- Group
- Butterflies and moths
- Records since 2000
- 2,178
- Scientific name
- Xestia sexstrigata
Grayish Button Lichen
- Group
- Lichens
- Records since 2000
- 2,173
- Scientific name
- Diplotomma alboatrum
Marbled Piercer
- Group
- Butterflies and moths
- Records since 2000
- 2,159
- Scientific name
- Cydia splendana
Sylvicola punctatus
- Group
- True flies
- Records since 2000
- 2,153
- Peak month
- August
Sea Lemon
- Group
- Molluscs
- Records since 2000
- 2,152
- Scientific name
- Doris pseudoargus
Great Yellow Bumble Bee
- Group
- Bees, wasps and ants
- Records since 2000
- 2,144
- Scientific name
- Bombus distinguendus
Slender Sea Pen
- Group
- Jellyfish, corals and anemones
- Records since 2000
- 2,139
- Scientific name
- Virgularia mirabilis
Cheirocratus sundevallii
- Group
- Crustaceans
- Records since 2000
- 2,128
- Peak month
- August
Bar-headed Goose
- Group
- Birds
- Records since 2000
- 2,106
- Scientific name
- Anser indicus
Urothoe marina
- Group
- Crustaceans
- Records since 2000
- 2,097
- Peak month
- August
Wall Speck Lichen
- Group
- Fungi
- Records since 2000
- 2,091
- Scientific name
- Verrucaria muralis
Gregarious fanworm
- Group
- Worms (annelids)
- Records since 2000
- 2,081
- Scientific name
- Pseudopotamilla reniformis
Maiden's Blush
- Group
- Butterflies and moths
- Records since 2000
- 2,078
- Scientific name
- Cyclophora punctaria
Yellow-barred Brindle
- Group
- Butterflies and moths
- Records since 2000
- 2,078
- Scientific name
- Acasis viretata
Trypanosyllis coeliaca
- Group
- Worms (annelids)
- Records since 2000
- 2,077
- Peak month
- August
Roach
- Group
- Fish
- Records since 2000
- 2,073
- Scientific name
- Rutilus rutilus
Dewberry
- Group
- Flowering plants
- Records since 2000
- 2,072
- Scientific name
- Rubus caesius
Southern Oak Bush-cricket
- Group
- Grasshoppers and crickets
- Records since 2000
- 2,035
- Scientific name
- Meconema meridionale
Goldenrod
- Group
- Flowering plants
- Records since 2000
- 2,030
- Scientific name
- Solidago virgaurea