Large Red Damselfly
- Group
- Dragonflies and damselflies
- Peak month
- May
- Records since 2000
- 143,697
Described in 1776
140 species
Marmalade hoverfly
- Group
- True flies
- Peak month
- July
- Records since 2000
- 46,804
Black Darter
- Group
- Dragonflies and damselflies
- Peak month
- August
- Records since 2000
- 26,741
Little Gull
- Group
- Birds
- Peak month
- April
- Records since 2000
- 23,156
Bristleworm
- Group
- Worms (annelids)
- Peak month
- June
- Records since 2000
- 13,819
Broad beau of sea
- Group
- Starfish and sea urchins
- Peak month
- August
- Records since 2000
- 11,335
Brittlestar
- Group
- Starfish and sea urchins
- Peak month
- June
- Records since 2000
- 10,470
Eriothrix rufomaculatus
- Group
- True flies
- Peak month
- July
- Records since 2000
- 8,117
Light Bulb Tunicate
- Group
- Sea squirts
- Peak month
- June
- Records since 2000
- 7,424
Glycera alba
- Group
- Worms (annelids)
- Peak month
- June
- Records since 2000
- 7,155
Glossy furrow-shell
- Group
- Molluscs
- Peak month
- June
- Records since 2000
- 7,146
Sea Gooseberry
- Group
- Other invertebrates
- Peak month
- June
- Records since 2000
- 5,049
Dirty Sea-squirt
- Group
- Sea squirts
- Peak month
- September
- Records since 2000
- 5,013
Pista cristata
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 4,898
Woundwort Shieldbug
- Group
- True bugs
- Peak month
- May
- Records since 2000
- 4,664
Wart Barnacle
- Group
- Crustaceans
- Peak month
- August
- Records since 2000
- 4,206
Ascidia mentula
- Group
- Sea squirts
- Peak month
- August
- Records since 2000
- 3,939
Striped Slender Robberfly
- Group
- True flies
- Peak month
- June
- Records since 2000
- 3,844
Grey Sailor Beetle
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 3,495
Golden trumpet worm
- Group
- Worms (annelids)
- Peak month
- May
- Records since 2000
- 3,367
Estuary ragworm
- Group
- Worms (annelids)
- Peak month
- September
- Records since 2000
- 3,299
Grey-patched Mining Bee
- Group
- Bees, wasps and ants
- Peak month
- April
- Records since 2000
- 3,249
Worm-like Sea Cucumber
- Group
- Starfish and sea urchins
- Peak month
- August
- Records since 2000
- 3,034
Syllis armillaris
- Group
- Worms (annelids)
- Peak month
- June
- Records since 2000
- 2,890
Lesser Swallow Prominent
- Group
- Butterflies and moths
- Peak month
- August
- Records since 2000
- 2,833
Red cushion stat
- Group
- Starfish and sea urchins
- Peak month
- July
- Records since 2000
- 2,817
Thistle Tortoise Beetle
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 2,654
Hairy Whirligig
- Group
- Beetles
- Peak month
- September
- Records since 2000
- 2,611
Bristleworm
- Group
- Worms (annelids)
- Peak month
- July
- Records since 2000
- 2,323
Face Fly
- Group
- True flies
- Peak month
- July
- Records since 2000
- 2,314
Dioctria rufipes
- Group
- True flies
- Peak month
- June
- Records since 2000
- 2,206
Banded house mosquito
- Group
- True flies
- Peak month
- July
- Records since 2000
- 2,143
Slender Sea Pen
- Group
- Jellyfish, corals and anemones
- Peak month
- August
- Records since 2000
- 2,139
Gas Mantle Ascidian
- Group
- Sea squirts
- Peak month
- September
- Records since 2000
- 1,998
Conops quadrifasciatus
- Group
- True flies
- Peak month
- August
- Records since 2000
- 1,991
Hairy sea-squirt
- Group
- Sea squirts
- Peak month
- September
- Records since 2000
- 1,872
Siphona geniculata
- Group
- True flies
- Peak month
- July
- Records since 2000
- 1,852
Little Bunting
- Group
- Birds
- Peak month
- October
- Records since 2000
- 1,835
Common Tortoiseshell Limpet
- Group
- Molluscs
- Peak month
- September
- Records since 2000
- 1,749
Ascidia virginea
- Group
- Sea squirts
- Peak month
- August
- Records since 2000
- 1,669
Orange-Clubbed Sea Slug
- Group
- Molluscs
- Peak month
- July
- Records since 2000
- 1,616
American Golden-Plover
- Group
- Birds
- Peak month
- October
- Records since 2000
- 1,494
Four-lined Polycera
- Group
- Molluscs
- Peak month
- July
- Records since 2000
- 1,471
Bristleworm
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 1,395
Pseudovadonia livida
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 1,375
White tortoiseshell limpet
- Group
- Molluscs
- Peak month
- September
- Records since 2000
- 1,355
Weevil
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 1,257
Tipula fulvipennis
- Group
- True flies
- Peak month
- August
- Records since 2000
- 1,226
Purple Heart Urchin
- Group
- Starfish and sea urchins
- Peak month
- September
- Records since 2000
- 1,188
Yellow May Dun
- Group
- Mayflies
- Peak month
- April
- Records since 2000
- 1,186
Bristleworm
- Group
- Worms (annelids)
- Peak month
- May
- Records since 2000
- 1,111
Broken-belted Bumble Bee
- Group
- Bees, wasps and ants
- Peak month
- September
- Records since 2000
- 1,093
Dark-saddled Leucozona
- Group
- True flies
- Peak month
- July
- Records since 2000
- 1,079
Thyone fusus
- Group
- Starfish and sea urchins
- Peak month
- July
- Records since 2000
- 1,053
Echinocardium flavescens
- Group
- Starfish and sea urchins
- Peak month
- August
- Records since 2000
- 949
Microtendipes pedellus
- Group
- True flies
- Peak month
- April
- Records since 2000
- 912
Rosy Starfish
- Group
- Starfish and sea urchins
- Peak month
- August
- Records since 2000
- 858
Flecked General
- Group
- True flies
- Peak month
- July
- Records since 2000
- 835
Cow parsley leaf beetle
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 800
Blood Star
- Group
- Starfish and sea urchins
- Peak month
- August
- Records since 2000
- 760
Minute Nutclam
- Group
- Molluscs
- Peak month
- May
- Records since 2000
- 759
Pherusa plumosa
- Group
- Worms (annelids)
- Peak month
- June
- Records since 2000
- 694
Scoletoma fragilis
- Group
- Worms (annelids)
- Peak month
- July
- Records since 2000
- 684
Ascidia conchilega
- Group
- Sea squirts
- Peak month
- August
- Records since 2000
- 659
Springtail
- Group
- Springtails
- Peak month
- April
- Records since 2000
- 653
Citrine Wagtail
- Group
- Birds
- Peak month
- September
- Records since 2000
- 632
Tiger scallop
- Group
- Molluscs
- Peak month
- August
- Records since 2000
- 594
Red-tailed Carder Bee
- Group
- Bees, wasps and ants
- Peak month
- August
- Records since 2000
- 583
Crowned Aeolis
- Group
- Molluscs
- Peak month
- June
- Records since 2000
- 557
Fuzzy Onchidoris
- Group
- Molluscs
- Peak month
- July
- Records since 2000
- 556
Rustic Bunting
- Group
- Birds
- Peak month
- October
- Records since 2000
- 542
Mottled anemone
- Group
- Jellyfish, corals and anemones
- Peak month
- August
- Records since 2000
- 540
Sericomyia superbiens
- Group
- True flies
- Peak month
- August
- Records since 2000
- 527
Maned sea anemone
- Group
- Jellyfish, corals and anemones
- Peak month
- September
- Records since 2000
- 474
Novocrania anomala
- Group
- Other invertebrates
- Peak month
- August
- Records since 2000
- 455
Hybos femoratus
- Group
- True flies
- Peak month
- July
- Records since 2000
- 437
A Mining Bee
- Group
- Bees, wasps and ants
- Peak month
- August
- Records since 2000
- 428
Smaller Noterus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 413
Ditrupa arietina
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 377
Dolerus nigratus
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 376
Philhelius citrofasciata
- Group
- True flies
- Peak month
- May
- Records since 2000
- 371
Dytiscus semisulcatus
- Group
- Beetles
- Peak month
- September
- Records since 2000
- 334
Trichocera hiemalis
- Group
- True flies
- Peak month
- October
- Records since 2000
- 306
Chaoborus crystallinus
- Group
- True flies
- Peak month
- June
- Records since 2000
- 287
Bitterling
- Group
- Fish
- Peak month
- September
- Records since 2000
- 286
Eunice pennata
- Group
- Worms (annelids)
- Peak month
- July
- Records since 2000
- 258
Trixa conspersa
- Group
- True flies
- Peak month
- June
- Records since 2000
- 251
Typosyllis armillaris
- Group
- Worms (annelids)
- Peak month
- June
- Records since 2000
- 250
Agrilus biguttatus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 240
Lispe tentaculata
- Group
- True flies
- Peak month
- July
- Records since 2000
- 232
Amara fulva
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 230
Pimpla contemplator
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 230
Amphitrite cirrata
- Group
- Worms (annelids)
- Peak month
- June
- Records since 2000
- 217
Ochthera mantis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 213
Siberian Accentor
- Group
- Birds
- Peak month
- October
- Records since 2000
- 205
Ancistrocerus trifasciatus
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 187
Dasytes plumbeus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 178
Cratichneumon culex
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 175
Simulium erythrocephalum
- Group
- True flies
- Peak month
- July
- Records since 2000
- 166
Velutina velutina
- Group
- Molluscs
- Peak month
- July
- Records since 2000
- 158
Oak Lutestring
- Group
- Butterflies and moths
- Peak month
- September
- Records since 2000
- 157
Cimbex connatus
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 148
Psococerastis gibbosa
- Group
- Other insects
- Peak month
- July
- Records since 2000
- 148
Bolinopsis infundibulum
- Group
- Other invertebrates
- Peak month
- June
- Records since 2000
- 145
Dixella amphibia
- Group
- True flies
- Peak month
- June
- Records since 2000
- 136
Ischnus inquisitorius
- Group
- Bees, wasps and ants
- Peak month
- April
- Records since 2000
- 134
Macrophya albicincta
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 124
Praunus flexuosus
- Group
- Crustaceans
- Peak month
- September
- Records since 2000
- 114
Red-necked Stint
- Group
- Birds
- Peak month
- June
- Records since 2000
- 112
Akera bullata
- Group
- Molluscs
- Peak month
- June
- Records since 2000
- 110
Lamellaria latens
- Group
- Molluscs
- Peak month
- August
- Records since 2000
- 110
Camptocladius stercorarius
- Group
- True flies
- Peak month
- July
- Records since 2000
- 108
Centroptilum luteolum
- Group
- Mayflies
- Peak month
- April
- Records since 2000
- 108
Tenthredo ferruginea
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 103
Blackburnian Warbler
- Group
- Birds
- Peak month
- October
- Records since 2000
- 100
Dasysyrphus pinastri
- Group
- True flies
- Peak month
- June
- Records since 2000
- 100
Scarlet Sea Anemone
- Group
- Jellyfish, corals and anemones
- Peak month
- August
- Records since 2000
- 100
Chrysura radians
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 95
Olethreutes schulziana
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 95
Proceraea prismatica
- Group
- Worms (annelids)
- Peak month
- July
- Records since 2000
- 94
Gyrohypnus fracticornis
- Group
- Beetles
- Peak month
- September
- Records since 2000
- 93
Siberian Thrush
- Group
- Birds
- Peak month
- October
- Records since 2000
- 93
Ampedus sanguinolentus
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 92
Girdled Leafhopper
- Group
- True bugs
- Peak month
- August
- Records since 2000
- 92
Cryptocephalus parvulus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 87
Notoplana atomata
- Group
- Flatworms
- Peak month
- September
- Records since 2000
- 87
Pea aphid
- Group
- True bugs
- Peak month
- June
- Records since 2000
- 85
Black-faced bunting
- Group
- Birds
- Peak month
- October
- Records since 2000
- 82
Isotomurus palustris
- Group
- Springtails
- Peak month
- March
- Records since 2000
- 78
Baillon's Crake
- Group
- Birds
- Peak month
- September
- Records since 2000
- 77
Physocephala nigra
- Group
- True flies
- Peak month
- June
- Records since 2000
- 71
Mycetophila fungorum
- Group
- True flies
- Peak month
- August
- Records since 2000
- 64
Horse Bot Fly
- Group
- True flies
- Peak month
- August
- Records since 2000
- 61
Diphyus quadripunctorius
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 59
Yponomeuta plumbella
- Group
- Butterflies and moths
- Peak month
- August
- Records since 2000
- 57
Northern sea urchin
- Group
- Starfish and sea urchins
- Peak month
- August
- Records since 2000
- 54
Lampronia praelatella
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 53
Apethymus serotinus
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 50
Helochares obscurus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 50
Palliolum striatum
- Group
- Molluscs
- Peak month
- May
- Records since 2000
- 50