Black-bordered Shingle Lichen
- Group
- Lichens
- Records since 2000
- 1,498
- Scientific name
- Parmeliella thriptophylla
Lepra corallina
- Group
- Lichens
- Records since 2000
- 1,493
- Peak month
- May
Rhizosolenia semispina
- Group
- Seaweeds and algae
- Records since 2000
- 1,490
- Peak month
- May
Wood Millet
- Group
- Flowering plants
- Records since 2000
- 1,481
- Scientific name
- Milium effusum
Rainbow Greenclock Beetle
- Group
- Beetles
- Records since 2000
- 1,479
- Scientific name
- Poecilus versicolor
Tipula lunata
- Group
- True flies
- Records since 2000
- 1,470
- Peak month
- May
Blinks [Montia fontana]
- Group
- Flowering plants
- Records since 2000
- 1,468
- Scientific name
- Montia fontana
Common Damselbug
- Group
- True bugs
- Records since 2000
- 1,466
- Scientific name
- Nabis rugosus
Familiar harp round beetle
- Group
- Beetles
- Records since 2000
- 1,464
- Scientific name
- Amara familiaris
Platynus assimilis
- Group
- Beetles
- Records since 2000
- 1,462
- Peak month
- May
Polished Camouflage Lichen
- Group
- Lichens
- Records since 2000
- 1,462
- Scientific name
- Melanelixia glabratula
Beaked Hawk's-beard
- Group
- Flowering plants
- Records since 2000
- 1,455
- Scientific name
- Crepis vesicaria
Concentric Boulder Lichen
- Group
- Lichens
- Records since 2000
- 1,451
- Scientific name
- Porpidia crustulata
Rock Veilwort
- Group
- Liverworts
- Records since 2000
- 1,448
- Scientific name
- Metzgeria conjugata
Copper click beetle
- Group
- Beetles
- Records since 2000
- 1,445
- Scientific name
- Ctenicera cuprea
Erioptera lutea
- Group
- True flies
- Records since 2000
- 1,442
- Peak month
- May
Diastylis rugosa
- Group
- Crustaceans
- Records since 2000
- 1,438
- Peak month
- May
Rhagonycha lignosa
- Group
- Beetles
- Records since 2000
- 1,434
- Peak month
- May
Small Green Nettle Weevil
- Group
- Beetles
- Records since 2000
- 1,434
- Scientific name
- Phyllobius roboretanus
Helophorus flavipes
- Group
- Beetles
- Records since 2000
- 1,428
- Peak month
- May
Light Brocade
- Group
- Butterflies and moths
- Records since 2000
- 1,428
- Scientific name
- Lacanobia w-latinum
Granulate ground beetle
- Group
- Beetles
- Records since 2000
- 1,425
- Scientific name
- Carabus granulatus
Mind-your-own-business
- Group
- Flowering plants
- Records since 2000
- 1,416
- Scientific name
- Soleirolia soleirolii
Peresiella clymenoides
- Group
- Worms (annelids)
- Records since 2000
- 1,416
- Peak month
- May
Orange-marked cranefly
- Group
- True flies
- Records since 2000
- 1,414
- Scientific name
- Ptychoptera contaminata
Mason Bee
- Group
- Bees, wasps and ants
- Records since 2000
- 1,412
- Scientific name
- Osmia caerulescens
Pectenia atlantica
- Group
- Lichens
- Records since 2000
- 1,406
- Peak month
- May
Purple Heron
- Group
- Birds
- Records since 2000
- 1,397
- Scientific name
- Ardea purpurea
Hairy Spider Weevil
- Group
- Beetles
- Records since 2000
- 1,395
- Scientific name
- Exomias pellucidus
Laburnum
- Group
- Flowering plants
- Records since 2000
- 1,393
- Scientific name
- Laburnum anagyroides
Six-celled Moss-dot
- Group
- Lichens
- Records since 2000
- 1,393
- Scientific name
- Bilimbia sabuletorum
Yellow-faced bell moth
- Group
- Butterflies and moths
- Records since 2000
- 1,393
- Scientific name
- Notocelia cynosbatella
Willow Flea-beetle
- Group
- Beetles
- Records since 2000
- 1,388
- Scientific name
- Crepidodera aurata
Hygrotus impressopunctatus
- Group
- Beetles
- Records since 2000
- 1,385
- Peak month
- May
Flavous Nomad Bee
- Group
- Bees, wasps and ants
- Records since 2000
- 1,383
- Scientific name
- Nomada flava
Dryophilocoris flavoquadrimaculatus
- Group
- True bugs
- Records since 2000
- 1,379
- Peak month
- May
Leistus spinibarbis
- Group
- Beetles
- Records since 2000
- 1,376
- Peak month
- May
Philorhizus melanocephalus
- Group
- Beetles
- Records since 2000
- 1,374
- Peak month
- May
Cheumatopsyche lepida
- Group
- Caddisflies
- Records since 2000
- 1,371
- Peak month
- May
Elegant script lichen
- Group
- Lichens
- Records since 2000
- 1,359
- Scientific name
- Graphis elegans
Water Carpet
- Group
- Butterflies and moths
- Records since 2000
- 1,359
- Scientific name
- Lampropteryx suffumata
Empis tessellata
- Group
- True flies
- Records since 2000
- 1,357
- Peak month
- May
Slider
- Group
- Reptiles
- Records since 2000
- 1,356
- Scientific name
- Trachemys scripta
Apple Fruit Rhynchites
- Group
- Beetles
- Records since 2000
- 1,352
- Scientific name
- Tatianaerhynchites aequatus
Smoky Crottle
- Group
- Lichens
- Records since 2000
- 1,349
- Scientific name
- Parmelia omphalodes
Wood Horsetail
- Group
- Ferns and horsetails
- Records since 2000
- 1,347
- Scientific name
- Equisetum sylvaticum
Aricidea cerrutii
- Group
- Worms (annelids)
- Records since 2000
- 1,346
- Peak month
- May
Hawthorn Mining Bee
- Group
- Bees, wasps and ants
- Records since 2000
- 1,339
- Scientific name
- Andrena chrysosceles