Athripsodes aterrimus
- Group
- Caddisflies
- Peak month
- July
- Records since 2000
- 2,803
Described in 1836
67 species
Psamathe fusca
- Group
- Worms (annelids)
- Peak month
- July
- Records since 2000
- 2,143
Toothed Small Brown
- Group
- Stoneflies
- Peak month
- April
- Records since 2000
- 2,052
Yellow barklouse
- Group
- Other insects
- Peak month
- October
- Records since 2000
- 1,515
Willow Fly
- Group
- Stoneflies
- Peak month
- April
- Records since 2000
- 1,342
Lype phaeopa
- Group
- Caddisflies
- Peak month
- June
- Records since 2000
- 1,227
Ceraclea dissimilis
- Group
- Caddisflies
- Peak month
- July
- Records since 2000
- 1,106
Papillicardium minimum
- Group
- Molluscs
- Peak month
- October
- Records since 2000
- 1,096
Lovenella clausa
- Group
- Jellyfish, corals and anemones
- Peak month
- July
- Records since 2000
- 803
Springtail
- Group
- Springtails
- Peak month
- February
- Records since 2000
- 706
Haliplus fluviatilis
- Group
- Beetles
- Peak month
- September
- Records since 2000
- 662
Banded Comb-Footed Spider
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 569
Seashore springtail
- Group
- Springtails
- Peak month
- September
- Records since 2000
- 530
Bark lice
- Group
- Other insects
- Peak month
- May
- Records since 2000
- 493
Holocentropus picicornis
- Group
- Caddisflies
- Peak month
- August
- Records since 2000
- 486
Ceraclea annulicornis
- Group
- Caddisflies
- Peak month
- October
- Records since 2000
- 400
Ancistrocerus oviventris
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 370
Euglesa milium
- Group
- Molluscs
- Peak month
- May
- Records since 2000
- 367
Eulimella acicula
- Group
- Molluscs
- Peak month
- May
- Records since 2000
- 315
Oligolophus tridens
- Group
- Mites, harvestmen and other arachnids
- Peak month
- August
- Records since 2000
- 304
Chaetopodella scutellaris
- Group
- True flies
- Peak month
- August
- Records since 2000
- 291
Stenopsocus immaculatus
- Group
- Other insects
- Peak month
- September
- Records since 2000
- 273
Robertus lividus
- Group
- Spiders
- Peak month
- July
- Records since 2000
- 253
Opacifrons humida
- Group
- True flies
- Peak month
- July
- Records since 2000
- 247
Monocephalus fuscipes
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 239
Nemoura cambrica
- Group
- Stoneflies
- Peak month
- April
- Records since 2000
- 220
Episinus angulatus
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 216
Leucoptera malifoliella
- Group
- Butterflies and moths
- Peak month
- September
- Records since 2000
- 209
Acalles ptinoides
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 178
Anoplus plantaris
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 174
Macrodema microptera
- Group
- True bugs
- Peak month
- August
- Records since 2000
- 174
Agyneta rurestris
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 162
Neanura muscorum
- Group
- Springtails
- Peak month
- October
- Records since 2000
- 148
Mesopsocus immunis
- Group
- Other insects
- Peak month
- June
- Records since 2000
- 147
Metylophorus nebulosus
- Group
- Other insects
- Peak month
- July
- Records since 2000
- 137
Rugilus rufipes
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 133
Caradrina kadenii
- Group
- Butterflies and moths
- Peak month
- October
- Records since 2000
- 124
Limothrips cerealium
- Group
- Other insects
- Peak month
- July
- Records since 2000
- 117
Pullimosina heteroneura
- Group
- True flies
- Peak month
- August
- Records since 2000
- 117
Euthyneura myrtilli
- Group
- True flies
- Peak month
- June
- Records since 2000
- 116
Sialis fuliginosa
- Group
- Other insects
- Peak month
- April
- Records since 2000
- 114
Evadne nordmanni
- Group
- Crustaceans
- Peak month
- June
- Records since 2000
- 103
Helophorus nanus
- Group
- Beetles
- Peak month
- March
- Records since 2000
- 102
Hemerobius stigma
- Group
- Lacewings
- Peak month
- March
- Records since 2000
- 99
Limothrips denticornis
- Group
- Other insects
- Peak month
- July
- Records since 2000
- 95
Ornithomya fringillina
- Group
- True flies
- Peak month
- August
- Records since 2000
- 95
Platygaster demades
- Group
- Bees, wasps and ants
- Peak month
- September
- Records since 2000
- 91
Chrysoperla carnea
- Group
- Lacewings
- Peak month
- July
- Records since 2000
- 87
Hylastes ater
- Group
- Beetles
- Peak month
- April
- Records since 2000
- 86
Synageles venator
- Group
- Spiders
- Peak month
- July
- Records since 2000
- 82
Hexatoma fuscipennis
- Group
- True flies
- Peak month
- May
- Records since 2000
- 80
Portuguese Blenny
- Group
- Fish
- Peak month
- September
- Records since 2000
- 80
Ammophila pubescens
- Group
- Bees, wasps and ants
- Peak month
- August
- Records since 2000
- 78
Simitidion simile
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 77
Minilimosina fungicola
- Group
- True flies
- Peak month
- March
- Records since 2000
- 76
Monoclona rufilatera
- Group
- True flies
- Peak month
- August
- Records since 2000
- 76
Bolitophila saundersii
- Group
- True flies
- Peak month
- October
- Records since 2000
- 75
Thrips vulgatissimus
- Group
- Other insects
- Peak month
- July
- Records since 2000
- 71
Atlantoraphidia maculicollis
- Group
- Other insects
- Peak month
- June
- Records since 2000
- 69
Sacculina carcini
- Group
- Crustaceans
- Peak month
- August
- Records since 2000
- 68
Jaera nordmanni
- Group
- Crustaceans
- Peak month
- April
- Records since 2000
- 66
Dicymbium tibiale
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 65
Thyasira biplicata
- Group
- Molluscs
- Peak month
- May
- Records since 2000
- 62
Gammarus fossarum
- Group
- Crustaceans
- Peak month
- April
- Records since 2000
- 58
Telenomus turesis
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 56
Pale Spruce Gall Adelgid
- Group
- True bugs
- Peak month
- June
- Records since 2000
- 54
A water beetle
- Group
- Beetles
- Peak month
- October
- Records since 2000
- 50