Terebellides stroemii
- Group
- Worms (annelids)
- Peak month
- July
- Records since 2000
- 9,004
Described in 1835
93 species
Fan-foot
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 3,000
Microvelia reticulata
- Group
- True bugs
- Peak month
- May
- Records since 2000
- 2,763
Predatory bug
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 2,065
Marbled Crenella
- Group
- Molluscs
- Peak month
- May
- Records since 2000
- 1,808
Hydroporus angustatus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 1,804
Amphicteis gunneri
- Group
- Worms (annelids)
- Peak month
- June
- Records since 2000
- 1,048
Macrochaeta clavicornis
- Group
- Worms (annelids)
- Peak month
- July
- Records since 2000
- 902
Dwarf Ascidian
- Group
- Sea squirts
- Peak month
- September
- Records since 2000
- 753
Ilybius quadriguttatus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 666
Coral worm
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 660
Worm Pipefish
- Group
- Fish
- Peak month
- August
- Records since 2000
- 605
Lesser Cockroach
- Group
- Other insects
- Peak month
- August
- Records since 2000
- 589
Notophyllum foliosum
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 589
Clapper Hydroid
- Group
- Jellyfish, corals and anemones
- Peak month
- May
- Records since 2000
- 559
Ellipteroides lateralis
- Group
- True flies
- Peak month
- July
- Records since 2000
- 533
Palloptera scutellata
- Group
- True flies
- Peak month
- April
- Records since 2000
- 523
Hydroporus melanarius
- Group
- Beetles
- Peak month
- April
- Records since 2000
- 515
Enchanter's stiltbug
- Group
- True bugs
- Peak month
- June
- Records since 2000
- 505
Hydroporus obscurus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 482
Nothria conchylega
- Group
- Worms (annelids)
- Peak month
- June
- Records since 2000
- 440
Agrypnia pagetana
- Group
- Caddisflies
- Peak month
- July
- Records since 2000
- 418
Ormosia hederae
- Group
- True flies
- Peak month
- May
- Records since 2000
- 388
Helina lasiophthalma
- Group
- True flies
- Peak month
- May
- Records since 2000
- 360
Palloptera quinquemaculata
- Group
- True flies
- Peak month
- June
- Records since 2000
- 355
Berosus affinis
- Group
- Beetles
- Peak month
- September
- Records since 2000
- 351
Ampharete octocirrata
- Group
- Worms (annelids)
- Peak month
- May
- Records since 2000
- 348
Hemigrapsus sanguineus
- Group
- Crustaceans
- Peak month
- June
- Records since 2000
- 339
Depressed river mussel
- Group
- Molluscs
- Peak month
- September
- Records since 2000
- 338
Philocheras trispinosus
- Group
- Crustaceans
- Peak month
- July
- Records since 2000
- 297
Alitta virens
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 293
Sabellides octocirrata
- Group
- Worms (annelids)
- Peak month
- March
- Records since 2000
- 282
Paraleptophlebia submarginata
- Group
- Mayflies
- Peak month
- April
- Records since 2000
- 273
Corymorpha nutans
- Group
- Jellyfish, corals and anemones
- Peak month
- June
- Records since 2000
- 272
Gabrius breviventer
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 272
Philocheras bispinosus
- Group
- Crustaceans
- Peak month
- September
- Records since 2000
- 256
Alentia gelatinosa
- Group
- Worms (annelids)
- Peak month
- September
- Records since 2000
- 238
Crossocerus annulipes
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 229
Grapholita janthinana
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 219
Phrurolithus festivus
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 216
Orthocephalus saltator
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 212
Crossocerus varus
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 189
Eurynome spinosa
- Group
- Crustaceans
- Peak month
- August
- Records since 2000
- 176
Cnephasia incertana
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 169
Arenicolides ecaudata
- Group
- Worms (annelids)
- Peak month
- June
- Records since 2000
- 165
Lacinius ephippiatus
- Group
- Mites, harvestmen and other arachnids
- Peak month
- June
- Records since 2000
- 161
Dolerus fumosus
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 153
Bembidion bruxellense
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 143
Berytinus minor
- Group
- True bugs
- Peak month
- May
- Records since 2000
- 139
Malthodes pumilus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 135
Taphropeltus contractus
- Group
- True bugs
- Peak month
- May
- Records since 2000
- 133
Cladius brullei
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 130
Laccornis oblongus
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 128
Grapholita funebrana
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 124
Empis diagramma
- Group
- True flies
- Peak month
- May
- Records since 2000
- 123
Cicadula frontalis
- Group
- True bugs
- Peak month
- August
- Records since 2000
- 118
Ash Whitefly
- Group
- True bugs
- Peak month
- October
- Records since 2000
- 116
Megalonotus praetextatus
- Group
- True bugs
- Peak month
- May
- Records since 2000
- 109
Euaesthetus ruficapillus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 107
Great Torpedo Ray, Atlantic Electric Ray, Atlantic Torpedo, Black Torpedo
- Group
- Fish
- Peak month
- March
- Records since 2000
- 105
Crossocerus ovalis
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 103
Dictyla convergens
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 102
Cryptostemma alienum
- Group
- True bugs
- Peak month
- June
- Records since 2000
- 100
Temnostethus pusillus
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 99
Euspilapteryx auroguttella
- Group
- Butterflies and moths
- Peak month
- August
- Records since 2000
- 98
Alpheus macrocheles
- Group
- Crustaceans
- Peak month
- March
- Records since 2000
- 97
Chartoscirta cocksii
- Group
- True bugs
- Peak month
- June
- Records since 2000
- 94
Red Clover Seed Weevil
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 89
Eriocrania semipurpurella
- Group
- Butterflies and moths
- Peak month
- May
- Records since 2000
- 88
Cerodontha lateralis
- Group
- True flies
- Peak month
- August
- Records since 2000
- 86
Cardiomya costellata
- Group
- Molluscs
- Peak month
- March
- Records since 2000
- 82
Procraerus tibialis
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 80
Cacopsylla visci
- Group
- True bugs
- Peak month
- September
- Records since 2000
- 79
A sea cucumber
- Group
- Starfish and sea urchins
- Peak month
- July
- Records since 2000
- 78
Opius irregularis
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 77
Meromyza nigriventris
- Group
- True flies
- Peak month
- July
- Records since 2000
- 73
Platydomene angusticollis
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 73
Crossocerus nigritus
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 72
Stenopelmus rufinasus
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 69
Curculio rubidus
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 65
European Oak Borer
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 61
Tettigometra laeta
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 61
Euura bergmanni
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 60
Xysticus lanio
- Group
- Spiders
- Peak month
- May
- Records since 2000
- 59
Philodromus collinus
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 58
Rhaphium brevicorne
- Group
- True flies
- Peak month
- July
- Records since 2000
- 56
Tychius schneideri
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 56
Craterolophus convolvulus
- Group
- Jellyfish, corals and anemones
- Peak month
- September
- Records since 2000
- 55
Ypsolopha horridella
- Group
- Butterflies and moths
- Peak month
- August
- Records since 2000
- 55
Phaonia rufipalpis
- Group
- True flies
- Peak month
- July
- Records since 2000
- 52
Chloriona unicolor
- Group
- True bugs
- Peak month
- June
- Records since 2000
- 51
Pegoplata aestiva
- Group
- True flies
- Peak month
- September
- Records since 2000
- 51
Tychius squamulatus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 51