Arge berberidis
- Group
- Bees, wasps and ants
- Records since 2000
- 346
- Peak month
- August
Bulrush wainscot
- Group
- Butterflies and moths
- Records since 2000
- 346
- Scientific name
- Nonagria typhae
European Bee-eater
- Group
- Birds
- Records since 2000
- 345
- Scientific name
- Merops apiaster
Jaxea nocturna
- Group
- Crustaceans
- Records since 2000
- 343
- Peak month
- August
Fimbriosthenelais zetlandica
- Group
- Worms (annelids)
- Records since 2000
- 341
- Peak month
- August
Forster's Tern
- Group
- Birds
- Records since 2000
- 341
- Scientific name
- Sterna forsteri
Rooting Bolete
- Group
- Fungi
- Records since 2000
- 340
- Scientific name
- Caloboletus radicans
Phyllonorycter platani
- Group
- Butterflies and moths
- Records since 2000
- 337
- Peak month
- August
Dinophysis tripos
- Group
- Microorganisms and protists
- Records since 2000
- 336
- Peak month
- August
Silba fumosa
- Group
- True flies
- Records since 2000
- 336
- Peak month
- August
Conocybe apala
- Group
- Fungi
- Records since 2000
- 333
- Peak month
- August
Puccinia poarum
- Group
- Fungi
- Records since 2000
- 333
- Peak month
- August
Ramalina cuspidata
- Group
- Lichens
- Records since 2000
- 333
- Peak month
- August
Platycis minutus
- Group
- Beetles
- Records since 2000
- 329
- Peak month
- August
Exorista larvarum
- Group
- True flies
- Records since 2000
- 328
- Peak month
- August
Neomyia viridescens
- Group
- True flies
- Records since 2000
- 327
- Peak month
- August
Antistea elegans
- Group
- Spiders
- Records since 2000
- 326
- Peak month
- August
Fat Duckweed
- Group
- Flowering plants
- Records since 2000
- 326
- Scientific name
- Lemna gibba
Halarachnion ligulatum
- Group
- Seaweeds and algae
- Records since 2000
- 326
- Peak month
- August
Lepton squamosum
- Group
- Molluscs
- Records since 2000
- 322
- Peak month
- August
Protocalliphora azurea
- Group
- True flies
- Records since 2000
- 322
- Peak month
- August
Puccinia behenis
- Group
- Fungi
- Records since 2000
- 322
- Peak month
- August
Schizoporella hesperia
- Group
- Bryozoans
- Records since 2000
- 322
- Peak month
- August
Brook lichen
- Group
- Fungi
- Records since 2000
- 320
- Scientific name
- Dermatocarpon luridum
Dioplosyllis cirrosa
- Group
- Worms (annelids)
- Records since 2000
- 320
- Peak month
- August
Calathus erratus
- Group
- Beetles
- Records since 2000
- 319
- Peak month
- August
Gyalolechia flavovirescens
- Group
- Lichens
- Records since 2000
- 319
- Peak month
- August
Lesser Earwig
- Group
- Other insects
- Records since 2000
- 319
- Scientific name
- Labia minor
Anopheles plumbeus
- Group
- True flies
- Records since 2000
- 317
- Peak month
- August
Delicate Apple-capsid
- Group
- True bugs
- Records since 2000
- 317
- Scientific name
- Malacocoris chlorizans
Phylo norvegica
- Group
- Worms (annelids)
- Records since 2000
- 317
- Peak month
- August
Amphisbetia operculata
- Group
- Jellyfish, corals and anemones
- Records since 2000
- 316
- Peak month
- August
Peachia cylindrica
- Group
- Jellyfish, corals and anemones
- Records since 2000
- 316
- Peak month
- August
Polyphysia crassa
- Group
- Worms (annelids)
- Records since 2000
- 316
- Peak month
- August
Euchone southerni
- Group
- Worms (annelids)
- Records since 2000
- 315
- Peak month
- August
Rhyzobius forestieri
- Group
- Beetles
- Records since 2000
- 315
- Peak month
- August
Tenuiphantes mengei
- Group
- Spiders
- Records since 2000
- 315
- Peak month
- August
Pontophilus spinosus
- Group
- Crustaceans
- Records since 2000
- 313
- Peak month
- August
Caryophyllia inornata
- Group
- Jellyfish, corals and anemones
- Records since 2000
- 312
- Peak month
- August
Persicaria orientalis
- Group
- Flowering plants
- Records since 2000
- 312
- Peak month
- August
Xanthandrus comtus
- Group
- True flies
- Records since 2000
- 312
- Peak month
- August
Chlorops hypostigma
- Group
- True flies
- Records since 2000
- 311
- Peak month
- August
Island cetraria lichen
- Group
- Lichens
- Records since 2000
- 311
- Scientific name
- Cetraria islandica
Pale eggar
- Group
- Butterflies and moths
- Records since 2000
- 311
- Scientific name
- Trichiura crataegi
Streblosoma intestinale
- Group
- Worms (annelids)
- Records since 2000
- 311
- Peak month
- August
Amphiblestrum flemingii
- Group
- Bryozoans
- Records since 2000
- 308
- Peak month
- August
Mycophaga testacea
- Group
- True flies
- Records since 2000
- 307
- Peak month
- August
Ophelia celtica
- Group
- Worms (annelids)
- Records since 2000
- 307
- Peak month
- August