Twelve-scaled Worm
- Group
- Worms (annelids)
- Records since 2000
- 4,887
- Scientific name
- Lepidonotus squamatus
Mint Moth
- Group
- Butterflies and moths
- Records since 2000
- 4,877
- Scientific name
- Pyrausta aurata
Red Bog-moss
- Group
- Mosses
- Records since 2000
- 4,772
- Scientific name
- Sphagnum rubellum
Woodland Red Ant
- Group
- Bees, wasps and ants
- Records since 2000
- 4,639
- Scientific name
- Myrmica ruginodis
Carder Bumble Bee
- Group
- Bees, wasps and ants
- Records since 2000
- 4,638
- Scientific name
- Bombus humilis
Tortoise Bug
- Group
- True bugs
- Records since 2000
- 4,626
- Scientific name
- Eurygaster testudinaria
Least Duckweed
- Group
- Flowering plants
- Records since 2000
- 4,623
- Scientific name
- Lemna minuta
Flavoplaca flavocitrina
- Group
- Lichens
- Records since 2000
- 4,586
- Peak month
- August
Common Limpet
- Group
- Molluscs
- Records since 2000
- 4,578
- Scientific name
- Patella vulgata
White Poplar
- Group
- Flowering plants
- Records since 2000
- 4,578
- Scientific name
- Populus alba
Moss Carder Bee
- Group
- Bees, wasps and ants
- Records since 2000
- 4,573
- Scientific name
- Bombus muscorum
Common Snowberry
- Group
- Flowering plants
- Records since 2000
- 4,471
- Scientific name
- Symphoricarpos albus
Rosy Rustic
- Group
- Butterflies and moths
- Records since 2000
- 4,443
- Scientific name
- Hydraecia micacea
Sea Comb
- Group
- Seaweeds and algae
- Records since 2000
- 4,418
- Scientific name
- Plocamium cartilagineum
Othomaera othonis
- Group
- Crustaceans
- Records since 2000
- 4,405
- Peak month
- August
Kite-tailed Robberfly
- Group
- True flies
- Records since 2000
- 4,398
- Scientific name
- Machimus atricapillus
Polyozosia albescens
- Group
- Lichens
- Records since 2000
- 4,325
- Peak month
- August
Prionospio cirrifera
- Group
- Worms (annelids)
- Records since 2000
- 4,321
- Peak month
- August
Aonides oxycephala
- Group
- Worms (annelids)
- Records since 2000
- 4,315
- Peak month
- August
Nototropis vedlomensis
- Group
- Crustaceans
- Records since 2000
- 4,293
- Peak month
- August
The White-Point
- Group
- Butterflies and moths
- Records since 2000
- 4,283
- Scientific name
- Mythimna albipuncta
Fat-hen
- Group
- Flowering plants
- Records since 2000
- 4,271
- Scientific name
- Chenopodium album
Knotted Wrack
- Group
- Seaweeds and algae
- Records since 2000
- 4,248
- Scientific name
- Ascophyllum nodosum
Reindeer Lichen
- Group
- Lichens
- Records since 2000
- 4,213
- Scientific name
- Cladonia portentosa
Wart Barnacle
- Group
- Crustaceans
- Records since 2000
- 4,206
- Scientific name
- Verruca stroemia
Apple
- Group
- Flowering plants
- Records since 2000
- 4,177
- Scientific name
- Malus domestica
Dipolydora caulleryi
- Group
- Worms (annelids)
- Records since 2000
- 4,146
- Peak month
- August
Minnow
- Group
- Fish
- Records since 2000
- 4,107
- Scientific name
- Phoxinus phoxinus
Red Bartsia
- Group
- Flowering plants
- Records since 2000
- 4,094
- Scientific name
- Odontites vernus
Balearic Shearwater
- Group
- Birds
- Records since 2000
- 4,086
- Scientific name
- Puffinus mauretanicus
Springtail
- Group
- Springtails
- Records since 2000
- 4,070
- Scientific name
- Entomobrya nivalis
Fool's Water-cress
- Group
- Flowering plants
- Records since 2000
- 4,038
- Scientific name
- Helosciadium nodiflorum
Elbow-stripe Grass-veneer
- Group
- Butterflies and moths
- Records since 2000
- 4,026
- Scientific name
- Agriphila geniculea
Stone Loach
- Group
- Fish
- Records since 2000
- 4,026
- Scientific name
- Barbatula barbatula
Glycera oxycephala
- Group
- Worms (annelids)
- Records since 2000
- 3,980
- Peak month
- August
Amphibious Bistort
- Group
- Flowering plants
- Records since 2000
- 3,976
- Scientific name
- Persicaria amphibia
Dog-cockle
- Group
- Molluscs
- Records since 2000
- 3,971
- Scientific name
- Glycymeris glycymeris
Ruddy Shelduck
- Group
- Birds
- Records since 2000
- 3,953
- Scientific name
- Tadorna ferruginea
Ascidia mentula
- Group
- Sea squirts
- Records since 2000
- 3,939
- Peak month
- August
Dusky Thorn
- Group
- Butterflies and moths
- Records since 2000
- 3,919
- Scientific name
- Ennomos fuscantaria
Annulate Fungus Gnat
- Group
- True flies
- Records since 2000
- 3,911
- Scientific name
- Ctenosciara hyalipennis
Heath Bumble Bee
- Group
- Bees, wasps and ants
- Records since 2000
- 3,910
- Scientific name
- Bombus jonellus
Norway king crab
- Group
- Crustaceans
- Records since 2000
- 3,906
- Scientific name
- Lithodes maja
Disporella hispida
- Group
- Bryozoans
- Records since 2000
- 3,873
- Peak month
- August
Molanna angustata
- Group
- Caddisflies
- Records since 2000
- 3,802
- Peak month
- August
Common Groundhopper
- Group
- Grasshoppers and crickets
- Records since 2000
- 3,753
- Scientific name
- Tetrix undulata
Jersey Tiger
- Group
- Butterflies and moths
- Records since 2000
- 3,666
- Scientific name
- Euplagia quadripunctaria
Orange Swift
- Group
- Butterflies and moths
- Records since 2000
- 3,650
- Scientific name
- Triodia sylvina