Small Yellow Sedge
- Group
- Caddisflies
- Records since 2000
- 2,644
- Scientific name
- Psychomyia pusilla
Peltigera hymenina
- Group
- Lichens
- Records since 2000
- 2,640
- Peak month
- May
Common Comfrey
- Group
- Flowering plants
- Records since 2000
- 2,637
- Scientific name
- Symphytum officinale
Tricyphona immaculata
- Group
- True flies
- Records since 2000
- 2,611
- Peak month
- May
Membraneous felt lichen
- Group
- Lichens
- Records since 2000
- 2,536
- Scientific name
- Peltigera membranacea
Ampharete lindstroemi
- Group
- Worms (annelids)
- Records since 2000
- 2,522
- Peak month
- May
Field Madder
- Group
- Flowering plants
- Records since 2000
- 2,508
- Scientific name
- Sherardia arvensis
Muslin Moth
- Group
- Butterflies and moths
- Records since 2000
- 2,508
- Scientific name
- Diaphora mendica
Soldier Fly
- Group
- True flies
- Records since 2000
- 2,495
- Scientific name
- Microchrysa polita
Wall Cotoneaster
- Group
- Flowering plants
- Records since 2000
- 2,486
- Scientific name
- Cotoneaster horizontalis
Shiny riverbank ground beetle
- Group
- Beetles
- Records since 2000
- 2,479
- Scientific name
- Bembidion lampros
Great Ramshorn
- Group
- Molluscs
- Records since 2000
- 2,449
- Scientific name
- Planorbarius corneus
Ocean Quahog
- Group
- Molluscs
- Records since 2000
- 2,449
- Scientific name
- Arctica islandica
Powdery Saucer Lichen
- Group
- Lichens
- Records since 2000
- 2,443
- Scientific name
- Ochrolechia androgyna
Horny Orb Mussel
- Group
- Molluscs
- Records since 2000
- 2,423
- Scientific name
- Sphaerium corneum
Capra's Water Cricket
- Group
- True bugs
- Records since 2000
- 2,402
- Scientific name
- Velia caprai
Limonia phragmitidis
- Group
- True flies
- Records since 2000
- 2,397
- Peak month
- May
Two-banded longhorn beetle
- Group
- Beetles
- Records since 2000
- 2,388
- Scientific name
- Rhagium bifasciatum
Pebbled Pixie-cup
- Group
- Lichens
- Records since 2000
- 2,374
- Scientific name
- Cladonia pyxidata
Scalloped Hazel
- Group
- Butterflies and moths
- Records since 2000
- 2,363
- Scientific name
- Odontopera bidentata
Fuscidea lightfootii
- Group
- Lichens
- Records since 2000
- 2,354
- Peak month
- May
Glistenworm
- Group
- Molluscs
- Records since 2000
- 2,345
- Scientific name
- Chaetoderma nitidulum
Hoary Cress
- Group
- Flowering plants
- Records since 2000
- 2,329
- Scientific name
- Lepidium draba
Handsome plant bug
- Group
- True bugs
- Records since 2000
- 2,323
- Scientific name
- Harpocera thoracica
Rhizosolenia imbricata
- Group
- Seaweeds and algae
- Records since 2000
- 2,309
- Peak month
- May
Great Forget-me-not
- Group
- Flowering plants
- Records since 2000
- 2,308
- Scientific name
- Brunnera macrophylla
Cantharis pellucida
- Group
- Beetles
- Records since 2000
- 2,305
- Peak month
- May
Orange-legged Furrow Bee
- Group
- Bees, wasps and ants
- Records since 2000
- 2,303
- Scientific name
- Halictus rubicundus
Four-spot Ladybird [Harmonia quadripunctata]
- Group
- Beetles
- Records since 2000
- 2,301
- Scientific name
- Harmonia quadripunctata
Paramphinome jeffreysii
- Group
- Worms (annelids)
- Records since 2000
- 2,297
- Peak month
- May
Great Horsetail
- Group
- Ferns and horsetails
- Records since 2000
- 2,294
- Scientific name
- Equisetum telmateia
Climbing Corydalis
- Group
- Flowering plants
- Records since 2000
- 2,256
- Scientific name
- Ceratocapnos claviculata
Athripsodes bilineatus
- Group
- Caddisflies
- Records since 2000
- 2,250
- Peak month
- May
Trichobranchus roseus
- Group
- Worms (annelids)
- Records since 2000
- 2,229
- Peak month
- May
Margined Ramshorn
- Group
- Molluscs
- Records since 2000
- 2,217
- Scientific name
- Planorbis planorbis
White Clover Seed Weevil
- Group
- Beetles
- Records since 2000
- 2,207
- Scientific name
- Protapion fulvipes
Three-nerved Sandwort
- Group
- Flowering plants
- Records since 2000
- 2,205
- Scientific name
- Moehringia trinervia
Sea lemon
- Group
- Sponges
- Records since 2000
- 2,204
- Scientific name
- Tethya citrina
Spotted felt lichen
- Group
- Lichens
- Records since 2000
- 2,203
- Scientific name
- Sticta sylvatica
Lily Beetle
- Group
- Beetles
- Records since 2000
- 2,178
- Scientific name
- Lilioceris lilii
Gall midge
- Group
- True flies
- Records since 2000
- 2,174
- Scientific name
- Lestremia cinerea
Griffith's cliostomum lichen
- Group
- Lichens
- Records since 2000
- 2,167
- Scientific name
- Cliostomum griffithii
Acupalpus dubius
- Group
- Beetles
- Records since 2000
- 2,142
- Peak month
- May
Fringecups
- Group
- Flowering plants
- Records since 2000
- 2,128
- Scientific name
- Tellima grandiflora
Bitter-vetch
- Group
- Flowering plants
- Records since 2000
- 2,120
- Scientific name
- Lathyrus linifolius
Limnephilus sparsus
- Group
- Caddisflies
- Records since 2000
- 2,118
- Peak month
- May
Pore lichen
- Group
- Lichens
- Records since 2000
- 2,100
- Scientific name
- Pertusaria hymenea
Eurasian Dotterel
- Group
- Birds
- Records since 2000
- 2,076
- Scientific name
- Charadrius morinellus