Leaf beetle
- Group
- Beetles
- Records since 2000
- 565
- Scientific name
- Pistosia testacea
Loscopia scolopacina
- Group
- Butterflies and moths
- Records since 2000
- 564
- Peak month
- July
Round-winged Muslin
- Group
- Butterflies and moths
- Records since 2000
- 564
- Scientific name
- Thumatha senex
Dolichopus propinquus
- Group
- True flies
- Records since 2000
- 563
- Peak month
- July
V click beetle
- Group
- Beetles
- Records since 2000
- 563
- Scientific name
- Stenagostus rhombeus
Great Tooth Hydroid
- Group
- Jellyfish, corals and anemones
- Records since 2000
- 560
- Scientific name
- Sertularella polyzonias
Sand Spurrey
- Group
- Flowering plants
- Records since 2000
- 560
- Scientific name
- Spergularia rubra
Red Legged Spider Wasp
- Group
- Bees, wasps and ants
- Records since 2000
- 559
- Scientific name
- Episyron rufipes
Red Maple
- Group
- Flowering plants
- Records since 2000
- 559
- Scientific name
- Acer saccharinum
Torsk
- Group
- Fish
- Records since 2000
- 559
- Scientific name
- Brosme brosme
Red-tailed Shrike
- Group
- Birds
- Records since 2000
- 558
- Scientific name
- Lanius phoenicuroides
Ringed Tigress
- Group
- Bees, wasps and ants
- Records since 2000
- 557
- Scientific name
- Athalia circularis
Sulfur knapweed root moth
- Group
- Butterflies and moths
- Records since 2000
- 557
- Scientific name
- Agapeta zoegana
Frit Fly
- Group
- True flies
- Records since 2000
- 556
- Scientific name
- Oscinella frit
Fuzzy Onchidoris
- Group
- Molluscs
- Records since 2000
- 556
- Scientific name
- Onchidoris muricata
Bucklandiella heterosticha
- Group
- Mosses
- Records since 2000
- 555
- Peak month
- July
Tephritis vespertina
- Group
- True flies
- Records since 2000
- 555
- Peak month
- July
Large-leaved Lime
- Group
- Flowering plants
- Records since 2000
- 554
- Scientific name
- Tilia platyphyllos
Upright Brown Grimmia
- Group
- Mosses
- Records since 2000
- 554
- Scientific name
- Schistidium strictum
Dinophysis acuminata
- Group
- Microorganisms and protists
- Records since 2000
- 553
- Peak month
- July
Dolichopus festivus
- Group
- True flies
- Records since 2000
- 553
- Peak month
- July
Liriomyza flaveola
- Group
- True flies
- Records since 2000
- 551
- Peak month
- July
Pond Olive
- Group
- Mayflies
- Records since 2000
- 551
- Scientific name
- Cloeon dipterum
Fine-leaved Leskea
- Group
- Mosses
- Records since 2000
- 549
- Scientific name
- Orthothecium intricatum
Allygus mixtus
- Group
- True bugs
- Records since 2000
- 548
- Peak month
- July
Flavoplaca limonia
- Group
- Lichens
- Records since 2000
- 548
- Peak month
- July
Diamond-back Marble
- Group
- Butterflies and moths
- Records since 2000
- 546
- Scientific name
- Eudemis profundana
Sapromyza quadripunctata
- Group
- True flies
- Records since 2000
- 543
- Peak month
- July
Apolygus spinolae
- Group
- True bugs
- Records since 2000
- 541
- Peak month
- July
Cladonia foliacea
- Group
- Lichens
- Records since 2000
- 540
- Peak month
- July
Linear skeleton shrimp
- Group
- Crustaceans
- Records since 2000
- 540
- Scientific name
- Caprella linearis
Killer shrimp
- Group
- Crustaceans
- Records since 2000
- 539
- Scientific name
- Dikerogammarus villosus
Southern Wainscot
- Group
- Butterflies and moths
- Records since 2000
- 538
- Scientific name
- Mythimna straminea
Muscoid fly
- Group
- True flies
- Records since 2000
- 537
- Scientific name
- Myospila meditabunda
Pendulous Wing-moss
- Group
- Mosses
- Records since 2000
- 537
- Scientific name
- Antitrichia curtipendula
Barnacle-eating onchidoris
- Group
- Molluscs
- Records since 2000
- 535
- Scientific name
- Onchidoris bilamellata
Coenosia testacea
- Group
- True flies
- Records since 2000
- 534
- Peak month
- July
Ellipteroides lateralis
- Group
- True flies
- Records since 2000
- 533
- Peak month
- July
Slender Cruet-moss
- Group
- Mosses
- Records since 2000
- 532
- Scientific name
- Tetraplodon mnioides
Leptacis tipulae
- Group
- Bees, wasps and ants
- Records since 2000
- 530
- Peak month
- July
Water Purslane
- Group
- Flowering plants
- Records since 2000
- 530
- Scientific name
- Lythrum portula
Fern-leaf Yarrow
- Group
- Flowering plants
- Records since 2000
- 529
- Scientific name
- Achillea filipendulina
Heteroclymene robusta
- Group
- Worms (annelids)
- Records since 2000
- 528
- Peak month
- July
Bog Notchwort
- Group
- Liverworts
- Records since 2000
- 526
- Scientific name
- Odontoschisma fluitans
Calathus mollis
- Group
- Beetles
- Records since 2000
- 525
- Peak month
- July
Crookneck Nodding-moss
- Group
- Mosses
- Records since 2000
- 525
- Scientific name
- Pohlia camptotrachela
Three-lined Soldier
- Group
- True flies
- Records since 2000
- 523
- Scientific name
- Oxycera trilineata
Agapetus delicatulus
- Group
- Caddisflies
- Records since 2000
- 522
- Peak month
- July