Yellow Oak Button
- Group
- Butterflies and moths
- Records since 2000
- 1,369
- Scientific name
- Aleimma loeflingiana
Clover Seed Weevil
- Group
- Beetles
- Records since 2000
- 1,359
- Scientific name
- Protapion apricans
Negro Ant
- Group
- Bees, wasps and ants
- Records since 2000
- 1,358
- Scientific name
- Formica fusca
Barred Yellow
- Group
- Butterflies and moths
- Records since 2000
- 1,357
- Scientific name
- Cidaria fulvata
Pale-shouldered Brocade
- Group
- Butterflies and moths
- Records since 2000
- 1,347
- Scientific name
- Lacanobia thalassina
Rhizosolenia delicatula
- Group
- Seaweeds and algae
- Records since 2000
- 1,346
- Peak month
- June
Dover grass
- Group
- Flowering plants
- Records since 2000
- 1,333
- Scientific name
- Lolium pratense
Large Mantis Dung Fly
- Group
- True flies
- Records since 2000
- 1,329
- Scientific name
- Norellisoma spinimanum
Altar-lily
- Group
- Flowering plants
- Records since 2000
- 1,326
- Scientific name
- Zantedeschia aethiopica
Northern Damselfly
- Group
- Dragonflies and damselflies
- Records since 2000
- 1,326
- Scientific name
- Coenagrion hastulatum
Rhagonycha nigriventris
- Group
- Beetles
- Records since 2000
- 1,317
- Peak month
- June
European spoon clam
- Group
- Molluscs
- Records since 2000
- 1,310
- Scientific name
- Cochlodesma praetenue
Bugloss
- Group
- Flowering plants
- Records since 2000
- 1,305
- Scientific name
- Lycopsis arvensis
Himalaya blackberry
- Group
- Flowering plants
- Records since 2000
- 1,303
- Scientific name
- Rubus armeniacus
Rhinoceros Beetle
- Group
- Beetles
- Records since 2000
- 1,303
- Scientific name
- Sinodendron cylindricum
Spreading meadow grass
- Group
- Flowering plants
- Records since 2000
- 1,298
- Scientific name
- Poa humilis
Small-leaved Lime
- Group
- Flowering plants
- Records since 2000
- 1,297
- Scientific name
- Tilia cordata
Vouaux's Dust Lichen
- Group
- Lichens
- Records since 2000
- 1,296
- Scientific name
- Lepraria vouauxii
Tawny-barred Angle
- Group
- Butterflies and moths
- Records since 2000
- 1,293
- Scientific name
- Macaria liturata
Northern Emerald
- Group
- Dragonflies and damselflies
- Records since 2000
- 1,291
- Scientific name
- Somatochlora arctica
Snail Hunter
- Group
- Beetles
- Records since 2000
- 1,291
- Scientific name
- Cychrus caraboides
Common Green Sawfly
- Group
- Bees, wasps and ants
- Records since 2000
- 1,286
- Scientific name
- Tenthredo mesomela
Wood Crane's-bill
- Group
- Flowering plants
- Records since 2000
- 1,280
- Scientific name
- Geranium sylvaticum
Shoulder-Striped Wainscot
- Group
- Butterflies and moths
- Records since 2000
- 1,277
- Scientific name
- Leucania comma
Map-Winged Swift
- Group
- Butterflies and moths
- Records since 2000
- 1,274
- Scientific name
- Korscheltellus fusconebulosus
Heath Snail
- Group
- Molluscs
- Records since 2000
- 1,269
- Scientific name
- Helicella itala
Cantharis lateralis
- Group
- Beetles
- Records since 2000
- 1,268
- Peak month
- June
Bradysia nitidicollis
- Group
- True flies
- Records since 2000
- 1,267
- Peak month
- June
Variegated Foam Lichen
- Group
- Lichens
- Records since 2000
- 1,267
- Scientific name
- Stereocaulon vesuvianum
Shallon
- Group
- Flowering plants
- Records since 2000
- 1,265
- Scientific name
- Gaultheria shallon
Staph aureus
- Group
- Microorganisms and protists
- Records since 2000
- 1,253
- Scientific name
- Staphylococcus aureus
Lecanora orosthea
- Group
- Lichens
- Records since 2000
- 1,249
- Peak month
- June
Squirrel's Tail Fescue
- Group
- Flowering plants
- Records since 2000
- 1,244
- Scientific name
- Festuca bromoides
Marsh fly
- Group
- True flies
- Records since 2000
- 1,239
- Scientific name
- Dryomyza anilis
Amara tibialis
- Group
- Beetles
- Records since 2000
- 1,233
- Peak month
- June
Lype phaeopa
- Group
- Caddisflies
- Records since 2000
- 1,227
- Peak month
- June
Bristleworm
- Group
- Worms (annelids)
- Records since 2000
- 1,225
- Scientific name
- Ampharete falcata
Thyme-leaved Sandwort
- Group
- Flowering plants
- Records since 2000
- 1,222
- Scientific name
- Arenaria serpyllifolia
Buck's-beard
- Group
- Flowering plants
- Records since 2000
- 1,219
- Scientific name
- Aruncus dioicus
Bembidion assimile
- Group
- Beetles
- Records since 2000
- 1,216
- Peak month
- June
Ghost Moth
- Group
- Butterflies and moths
- Records since 2000
- 1,212
- Scientific name
- Hepialus humuli
Zebra Jumper
- Group
- Spiders
- Records since 2000
- 1,211
- Scientific name
- Salticus scenicus
Fan-bristled Robberfly
- Group
- True flies
- Records since 2000
- 1,208
- Scientific name
- Dysmachus trigonus
Water Bent
- Group
- Flowering plants
- Records since 2000
- 1,207
- Scientific name
- Polypogon viridis
Yellow-barred Long-horn
- Group
- Butterflies and moths
- Records since 2000
- 1,205
- Scientific name
- Nemophora degeerella
Common clam lichen
- Group
- Lichens
- Records since 2000
- 1,203
- Scientific name
- Hypocenomyce scalaris
Cordylepherus viridis
- Group
- Beetles
- Records since 2000
- 1,201
- Peak month
- June
Ischnopterapion loti
- Group
- Beetles
- Records since 2000
- 1,199
- Peak month
- June