Eurasian Reed Warbler
- Group
- Birds
- Peak month
- May
- Records since 2000
- 148,874
Described in 1804
113 species
Sixspot Cranefly
- Group
- True flies
- Peak month
- May
- Records since 2000
- 7,283
Common Rough Woodlouse
- Group
- Crustaceans
- Peak month
- April
- Records since 2000
- 6,413
Red Ribbon Worm
- Group
- Other invertebrates
- Peak month
- June
- Records since 2000
- 5,974
Peanut worm
- Group
- Other invertebrates
- Peak month
- August
- Records since 2000
- 5,102
Little Grey
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 4,519
Twin Fan Worm
- Group
- Worms (annelids)
- Peak month
- May
- Records since 2000
- 4,203
Annulate Fungus Gnat
- Group
- True flies
- Peak month
- August
- Records since 2000
- 3,911
Black-striped cranefly
- Group
- True flies
- Peak month
- May
- Records since 2000
- 3,421
Bodotria scorpioides
- Group
- Crustaceans
- Peak month
- July
- Records since 2000
- 3,140
Austrolimnophila ochracea
- Group
- True flies
- Peak month
- June
- Records since 2000
- 3,117
Common Pill Woodlouse
- Group
- Crustaceans
- Peak month
- April
- Records since 2000
- 2,783
Clytocerus ocellaris
- Group
- True flies
- Peak month
- June
- Records since 2000
- 2,664
Tricyphona immaculata
- Group
- True flies
- Peak month
- May
- Records since 2000
- 2,611
Short-winged Conehead
- Group
- Grasshoppers and crickets
- Peak month
- August
- Records since 2000
- 2,376
Tipula lateralis
- Group
- True flies
- Peak month
- July
- Records since 2000
- 2,163
Four-spotted cranefly
- Group
- True flies
- Peak month
- June
- Records since 2000
- 2,050
Sand Burrowing Brittle Star
- Group
- Starfish and sea urchins
- Peak month
- June
- Records since 2000
- 1,808
Minke whale
- Group
- Mammals
- Peak month
- June
- Records since 2000
- 1,556
Cheilotrichia cinerascens
- Group
- True flies
- Peak month
- May
- Records since 2000
- 1,548
Common Neobisid
- Group
- Mites, harvestmen and other arachnids
- Peak month
- March
- Records since 2000
- 1,470
Violet Black-legged
- Group
- True flies
- Peak month
- June
- Records since 2000
- 1,452
Erioptera lutea
- Group
- True flies
- Peak month
- May
- Records since 2000
- 1,442
Parchment Worm
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 1,390
Pseudoprotella phasma
- Group
- Crustaceans
- Peak month
- July
- Records since 2000
- 1,272
Fan-bristled Robberfly
- Group
- True flies
- Peak month
- June
- Records since 2000
- 1,208
Molophilus griseus
- Group
- True flies
- Peak month
- May
- Records since 2000
- 1,200
Plant bug
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 1,096
Tipula vittata
- Group
- True flies
- Peak month
- April
- Records since 2000
- 1,077
Anopheles claviger
- Group
- True flies
- Peak month
- July
- Records since 2000
- 1,056
Slender-footed Robberfly
- Group
- True flies
- Peak month
- June
- Records since 2000
- 1,041
Neolimonia dumetorum
- Group
- True flies
- Peak month
- June
- Records since 2000
- 1,023
Common Ectemnius
- Group
- Bees, wasps and ants
- Peak month
- August
- Records since 2000
- 975
Conilera cylindracea
- Group
- Crustaceans
- Peak month
- August
- Records since 2000
- 813
Common Chthonid
- Group
- Mites, harvestmen and other arachnids
- Peak month
- June
- Records since 2000
- 794
Downland Bee-fly
- Group
- True flies
- Peak month
- July
- Records since 2000
- 791
Dicranomyia fusca
- Group
- True flies
- Peak month
- May
- Records since 2000
- 664
Cave Spider
- Group
- Spiders
- Peak month
- August
- Records since 2000
- 596
Iridescent Worm
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 593
Round-winged Muslin
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 564
Ilisia maculata
- Group
- True flies
- Peak month
- June
- Records since 2000
- 549
Dilophus femoratus
- Group
- True flies
- Peak month
- May
- Records since 2000
- 517
Xylophagus ater
- Group
- True flies
- Peak month
- May
- Records since 2000
- 431
Midge
- Group
- True flies
- Peak month
- April
- Records since 2000
- 426
A Spider-hunting wasp
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 425
Crepidodera plutus
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 419
Polypedilum nubeculosum
- Group
- True flies
- Peak month
- June
- Records since 2000
- 410
Symplecta hybrida
- Group
- True flies
- Peak month
- July
- Records since 2000
- 400
Ormosia lineata
- Group
- True flies
- Peak month
- April
- Records since 2000
- 392
Bibio leucoptera
- Group
- True flies
- Peak month
- May
- Records since 2000
- 388
Jorunna tomentosa
- Group
- Molluscs
- Peak month
- August
- Records since 2000
- 371
Tubulanus annulatus
- Group
- Other invertebrates
- Peak month
- September
- Records since 2000
- 353
Eloeophila maculata
- Group
- True flies
- Peak month
- May
- Records since 2000
- 339
Melita palmata
- Group
- Crustaceans
- Peak month
- March
- Records since 2000
- 332
Elysia viridis
- Group
- Molluscs
- Peak month
- September
- Records since 2000
- 327
Tachypeza nubila
- Group
- True flies
- Peak month
- June
- Records since 2000
- 324
Doto pinnatifida
- Group
- Molluscs
- Peak month
- June
- Records since 2000
- 309
Broom Psyllid
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 297
Molophilus ater
- Group
- True flies
- Peak month
- May
- Records since 2000
- 288
Turbonilla acuta
- Group
- Molluscs
- Peak month
- April
- Records since 2000
- 288
Dolichosciara flavipes
- Group
- True flies
- Peak month
- June
- Records since 2000
- 281
Tipula flavolineata
- Group
- True flies
- Peak month
- May
- Records since 2000
- 252
Dicyphus errans
- Group
- True bugs
- Peak month
- June
- Records since 2000
- 249
Pedicia littoralis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 244
Euphylidorea lineola
- Group
- True flies
- Peak month
- May
- Records since 2000
- 233
Halticus luteicollis
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 212
Dicranomyia didyma
- Group
- True flies
- Peak month
- June
- Records since 2000
- 192
Dicyphus annulatus
- Group
- True bugs
- Peak month
- September
- Records since 2000
- 192
Empis punctata
- Group
- True flies
- Peak month
- June
- Records since 2000
- 190
Empis chioptera
- Group
- True flies
- Peak month
- May
- Records since 2000
- 184
Serromyia femorata
- Group
- True flies
- Peak month
- June
- Records since 2000
- 173
Macropelopia nebulosa
- Group
- True flies
- Peak month
- April
- Records since 2000
- 172
Gorytes quadrifasciatus
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 167
Montagus sea snail
- Group
- Fish
- Peak month
- February
- Records since 2000
- 166
Rhamphomyia longipes
- Group
- True flies
- Peak month
- June
- Records since 2000
- 162
Platypalpus minutus
- Group
- True flies
- Peak month
- June
- Records since 2000
- 145
Cladius compressicornis
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 143
Phora atra
- Group
- True flies
- Peak month
- May
- Records since 2000
- 142
Euura myosotidis
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 141
Dicranomyia lutea
- Group
- True flies
- Peak month
- May
- Records since 2000
- 140
Gelis areator
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 133
Stenus binotatus
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 130
Anevrina thoracica
- Group
- True flies
- Peak month
- May
- Records since 2000
- 124
Nysius thymi
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 124
Rhamphomyia sulcata
- Group
- True flies
- Peak month
- May
- Records since 2000
- 122
Smittia leucopogon
- Group
- True flies
- Peak month
- March
- Records since 2000
- 112
Blaps mucronata
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 107
Atylotus fulvus
- Group
- True flies
- Peak month
- July
- Records since 2000
- 103
Ceratopogon punctatus
- Group
- True flies
- Peak month
- June
- Records since 2000
- 101
Exechia fusca
- Group
- True flies
- Peak month
- October
- Records since 2000
- 95
Ulomyia fuliginosa
- Group
- True flies
- Peak month
- July
- Records since 2000
- 94
Mimesa equestris
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 93
Procladius choreus
- Group
- True flies
- Peak month
- May
- Records since 2000
- 84
Pselaphochernes scorpioides
- Group
- Mites, harvestmen and other arachnids
- Peak month
- April
- Records since 2000
- 83
Stigmus pendulus
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 83
Empis lutea
- Group
- True flies
- Peak month
- July
- Records since 2000
- 78
Ptychoptera paludosa
- Group
- True flies
- Peak month
- June
- Records since 2000
- 78
Gnathia maxillaris
- Group
- Crustaceans
- Peak month
- April
- Records since 2000
- 74
Microphor holosericeus
- Group
- True flies
- Peak month
- May
- Records since 2000
- 74
Trinchesia caerulea
- Group
- Molluscs
- Peak month
- May
- Records since 2000
- 74
Schizohelea leucopeza
- Group
- True flies
- Peak month
- July
- Records since 2000
- 69
Mitostoma chrysomelas
- Group
- Mites, harvestmen and other arachnids
- Peak month
- May
- Records since 2000
- 66
Ormyrus nitidulus
- Group
- Bees, wasps and ants
- Peak month
- September
- Records since 2000
- 64
Paratendipes albimanus
- Group
- True flies
- Peak month
- July
- Records since 2000
- 63
Diapterobates humeralis
- Group
- Mites, harvestmen and other arachnids
- Peak month
- April
- Records since 2000
- 61
Empis opaca
- Group
- True flies
- Peak month
- May
- Records since 2000
- 61
Orsodacne humeralis
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 61
Rymosia fasciata
- Group
- True flies
- Peak month
- October
- Records since 2000
- 61
Symphoromyia immaculata
- Group
- True flies
- Peak month
- June
- Records since 2000
- 60
Oxyopes heterophthalmus
- Group
- Spiders
- Peak month
- July
- Records since 2000
- 57
Ash Sawfly
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 56
Tenthredo mandibularis
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 51
Thereva fulva
- Group
- True flies
- Peak month
- July
- Records since 2000
- 51