Emerald Damselfly
- Group
- Dragonflies and damselflies
- Peak month
- August
- Records since 2000
- 46,053
Described in 1823
93 species
Red-eyed Damselfly
- Group
- Dragonflies and damselflies
- Peak month
- June
- Records since 2000
- 40,953
European Common Lizard
- Group
- Reptiles
- Peak month
- August
- Records since 2000
- 20,492
Hydraena gracilis
- Group
- Beetles
- Peak month
- September
- Records since 2000
- 4,245
Bourguignat's Slug
- Group
- Molluscs
- Peak month
- April
- Records since 2000
- 3,328
Cotton Spinner
- Group
- Starfish and sea urchins
- Peak month
- July
- Records since 2000
- 3,139
Headfly
- Group
- True flies
- Peak month
- July
- Records since 2000
- 2,291
Seine riverbank ground beetle
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 2,082
Fly
- Group
- True flies
- Peak month
- June
- Records since 2000
- 1,907
Common sawfly
- Group
- Bees, wasps and ants
- Peak month
- August
- Records since 2000
- 1,810
Furcate Dung Fly
- Group
- True flies
- Peak month
- June
- Records since 2000
- 1,807
Cereal Fly
- Group
- True flies
- Peak month
- June
- Records since 2000
- 1,734
Leach's Bithynia
- Group
- Molluscs
- Peak month
- May
- Records since 2000
- 1,558
Chrysotus gramineus
- Group
- True flies
- Peak month
- July
- Records since 2000
- 982
Athalia cordata
- Group
- Bees, wasps and ants
- Peak month
- August
- Records since 2000
- 887
White-tailed Lapwing
- Group
- Birds
- Peak month
- September
- Records since 2000
- 759
Bembidion aeneum
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 739
Drymeia hamata
- Group
- True flies
- Peak month
- August
- Records since 2000
- 730
Sympycnus pulicarius
- Group
- True flies
- Peak month
- June
- Records since 2000
- 726
Hercostomus aerosus
- Group
- True flies
- Peak month
- June
- Records since 2000
- 720
Coenia palustris
- Group
- True flies
- Peak month
- June
- Records since 2000
- 716
Schoenomyza litorella
- Group
- True flies
- Peak month
- July
- Records since 2000
- 675
Campsicnemus scambus
- Group
- True flies
- Peak month
- June
- Records since 2000
- 633
Keeled Slug
- Group
- Molluscs
- Peak month
- September
- Records since 2000
- 606
Stenus impressus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 605
Campsicnemus curvipes
- Group
- True flies
- Peak month
- June
- Records since 2000
- 586
Demetrias imperialis
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 581
Pachygnatha clercki
- Group
- Spiders
- Peak month
- August
- Records since 2000
- 580
Liriomyza flaveola
- Group
- True flies
- Peak month
- July
- Records since 2000
- 551
Anthomyza gracilis
- Group
- True flies
- Peak month
- July
- Records since 2000
- 502
Hercostomus cupreus
- Group
- True flies
- Peak month
- June
- Records since 2000
- 438
Hebecnema vespertina
- Group
- True flies
- Peak month
- May
- Records since 2000
- 419
Nematus pavidus
- Group
- Bees, wasps and ants
- Peak month
- September
- Records since 2000
- 384
Hercostomus nigripennis
- Group
- True flies
- Peak month
- July
- Records since 2000
- 382
Phyllobius maculicornis
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 368
Adna anglica
- Group
- Crustaceans
- Peak month
- September
- Records since 2000
- 354
Hemichroa australis
- Group
- Bees, wasps and ants
- Peak month
- August
- Records since 2000
- 350
Scaptomyza flava
- Group
- True flies
- Peak month
- July
- Records since 2000
- 306
Black moss beetle
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 294
Kelp Gull
- Group
- Birds
- Peak month
- August
- Records since 2000
- 283
Diastata fuscula
- Group
- True flies
- Peak month
- July
- Records since 2000
- 279
Booted Warbler
- Group
- Birds
- Peak month
- October
- Records since 2000
- 267
Limaria loscombi
- Group
- Molluscs
- Peak month
- May
- Records since 2000
- 267
Leuckartiara octona
- Group
- Jellyfish, corals and anemones
- Peak month
- March
- Records since 2000
- 240
Trixoscelis obscurella
- Group
- True flies
- Peak month
- July
- Records since 2000
- 232
Sybistroma obscurella
- Group
- True flies
- Peak month
- July
- Records since 2000
- 228
Masked Shrike
- Group
- Birds
- Peak month
- October
- Records since 2000
- 195
Chamaemyia aridella
- Group
- True flies
- Peak month
- July
- Records since 2000
- 188
Nimbus obliteratus
- Group
- Beetles
- Peak month
- October
- Records since 2000
- 180
Chrysotimus molliculus
- Group
- True flies
- Peak month
- July
- Records since 2000
- 177
Megaselia pulicaria
- Group
- True flies
- Peak month
- April
- Records since 2000
- 171
Lordiphosa fenestrarum
- Group
- True flies
- Peak month
- July
- Records since 2000
- 155
Megaselia flava
- Group
- True flies
- Peak month
- July
- Records since 2000
- 155
Scaptomyza graminum
- Group
- True flies
- Peak month
- May
- Records since 2000
- 155
Trumpeter finch
- Group
- Birds
- Peak month
- May
- Records since 2000
- 151
Discomyza incurva
- Group
- True flies
- Peak month
- July
- Records since 2000
- 133
Otiorhynchus crataegi
- Group
- Beetles
- Peak month
- September
- Records since 2000
- 131
Sciapus wiedemanni
- Group
- True flies
- Peak month
- July
- Records since 2000
- 131
Chirosia flavipennis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 122
Pachynematus clitellatus
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 115
Zaphne ambigua
- Group
- True flies
- Peak month
- June
- Records since 2000
- 115
Aphelopus atratus
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 110
Meoneura vagans
- Group
- True flies
- Peak month
- August
- Records since 2000
- 110
Trixoscelis frontalis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 108
Clothing moth
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 103
A water beetle
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 99
Athalia bicolor
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 99
Cuvier's beaked whale
- Group
- Mammals
- Peak month
- October
- Records since 2000
- 98
Dicrotendipes modestus
- Group
- True flies
- Peak month
- May
- Records since 2000
- 96
Pterostichus adstrictus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 96
:: moss beetle
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 92
Dolerus ferrugatus
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 89
Tethina grisea
- Group
- True flies
- Peak month
- July
- Records since 2000
- 85
Rhaphium longicorne
- Group
- True flies
- Peak month
- June
- Records since 2000
- 83
Eustalomyia hilaris
- Group
- True flies
- Peak month
- August
- Records since 2000
- 77
Crested Tern
- Group
- Birds
- Peak month
- October
- Records since 2000
- 75
Drosophila obscura
- Group
- True flies
- Peak month
- May
- Records since 2000
- 75
Cape Gannet
- Group
- Birds
- Peak month
- October
- Records since 2000
- 74
Pontastacus leptodactylus
- Group
- Crustaceans
- Peak month
- December
- Records since 2000
- 73
Medetera jacula
- Group
- True flies
- Peak month
- June
- Records since 2000
- 70
Philygria flavipes
- Group
- True flies
- Peak month
- August
- Records since 2000
- 70
Syntormon tarsatus
- Group
- True flies
- Peak month
- June
- Records since 2000
- 70
Hairy poplar sawfly
- Group
- Bees, wasps and ants
- Peak month
- September
- Records since 2000
- 66
Drupenatus nasturtii
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 65
Trixoscelis marginella
- Group
- True flies
- Peak month
- July
- Records since 2000
- 64
Sciapus longulus
- Group
- True flies
- Peak month
- July
- Records since 2000
- 62
Barynotus squamosus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 60
Dolerus cothurnatus
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 58
Diaphorus oculatus
- Group
- True flies
- Peak month
- July
- Records since 2000
- 56
Mycetophila ichneumonea
- Group
- True flies
- Peak month
- June
- Records since 2000
- 55
Chamaemyia juncorum
- Group
- True flies
- Peak month
- June
- Records since 2000
- 52
Cnemacantha muscaria
- Group
- True flies
- Peak month
- May
- Records since 2000
- 52
Neurigona pallida
- Group
- True flies
- Peak month
- June
- Records since 2000
- 52