Hydroporus tessellatus
- Group
- Beetles
- Records since 2000
- 1,073
- Peak month
- May
Pogonocherus hispidus
- Group
- Beetles
- Records since 2000
- 1,072
- Peak month
- May
Pyrenula macrospora
- Group
- Fungi
- Records since 2000
- 1,072
- Peak month
- May
Gyrographa gyrocarpa
- Group
- Lichens
- Records since 2000
- 1,071
- Peak month
- May
Lime nail gall, Bugle gall
- Group
- Mites, harvestmen and other arachnids
- Records since 2000
- 1,068
- Scientific name
- Eriophyes tiliae
Ash Bark Beetle
- Group
- Beetles
- Records since 2000
- 1,065
- Scientific name
- Hylesinus varius
Granular Mottled-disk Lichen
- Group
- Lichens
- Records since 2000
- 1,064
- Scientific name
- Trapeliopsis granulosa
Green-footed Peacock Beetle
- Group
- Beetles
- Records since 2000
- 1,062
- Scientific name
- Elaphrus riparius
Capitellid Thread Worm
- Group
- Worms (annelids)
- Records since 2000
- 1,059
- Scientific name
- Heteromastus filiformis
Flat Ramshorn
- Group
- Molluscs
- Records since 2000
- 1,058
- Scientific name
- Hippeutis complanatus
Lake Limpet
- Group
- Molluscs
- Records since 2000
- 1,053
- Scientific name
- Acroloxus lacustris
Bucklandiella affinis
- Group
- Mosses
- Records since 2000
- 1,048
- Peak month
- May
Rust Fungus
- Group
- Fungi
- Records since 2000
- 1,048
- Scientific name
- Kuehneola uredinis
Crystal Snail
- Group
- Molluscs
- Records since 2000
- 1,047
- Scientific name
- Vitrea crystallina
Sharp-collared Furrow Bee
- Group
- Bees, wasps and ants
- Records since 2000
- 1,047
- Scientific name
- Lasioglossum malachurum
Green Paddle Worm
- Group
- Worms (annelids)
- Records since 2000
- 1,045
- Scientific name
- Eulalia viridis
Flat Fruited Pelt
- Group
- Lichens
- Records since 2000
- 1,044
- Scientific name
- Peltigera horizontalis
Paris riverbank ground beetle
- Group
- Beetles
- Records since 2000
- 1,041
- Scientific name
- Bembidion obtusum
Icterine Warbler
- Group
- Birds
- Records since 2000
- 1,038
- Scientific name
- Hippolais icterina
Round-mouthed Snail
- Group
- Molluscs
- Records since 2000
- 1,038
- Scientific name
- Pomatias elegans
Rape
- Group
- Flowering plants
- Records since 2000
- 1,037
- Scientific name
- Brassica napus
Water Stick Insect
- Group
- True bugs
- Records since 2000
- 1,036
- Scientific name
- Ranatra linearis
Great Diving Beetle
- Group
- Beetles
- Records since 2000
- 1,035
- Scientific name
- Dytiscus marginalis
Narrow-dimpled Sunshiner
- Group
- Beetles
- Records since 2000
- 1,035
- Scientific name
- Amara similata
Drymus sylvaticus
- Group
- True bugs
- Records since 2000
- 1,032
- Peak month
- May
Ramson's Hoverfly
- Group
- True flies
- Records since 2000
- 1,031
- Scientific name
- Portevinia maculata
Anaspis frontalis
- Group
- Beetles
- Records since 2000
- 1,027
- Peak month
- May
Hydraena riparia
- Group
- Beetles
- Records since 2000
- 1,024
- Peak month
- May
Common Bistort
- Group
- Flowering plants
- Records since 2000
- 1,020
- Scientific name
- Bistorta officinalis
Red-legged harp ground beetle
- Group
- Beetles
- Records since 2000
- 1,014
- Scientific name
- Harpalus rubripes
Parmeliella parvula
- Group
- Lichens
- Records since 2000
- 1,008
- Also known as
- a Lichen
Blonde Ray
- Group
- Fish
- Records since 2000
- 1,004
- Scientific name
- Bathyraja brachyurops
Bordered Shieldbug
- Group
- True bugs
- Records since 2000
- 1,004
- Scientific name
- Legnotus limbosus
Speckled Yellow
- Group
- Butterflies and moths
- Records since 2000
- 1,004
- Scientific name
- Pseudopanthera macularia
Hydroporus tristis
- Group
- Beetles
- Records since 2000
- 1,001
- Peak month
- May
Leucothoe lilljeborgi
- Group
- Crustaceans
- Records since 2000
- 998
- Peak month
- May
Anisomeridium lichen
- Group
- Fungi
- Records since 2000
- 997
- Scientific name
- Anisomeridium biforme
Spotted Sandpiper
- Group
- Birds
- Records since 2000
- 997
- Scientific name
- Actitis macularius
Hastings riverbank ground beetle
- Group
- Beetles
- Records since 2000
- 996
- Scientific name
- Bembidion properans
Tipula luna
- Group
- True flies
- Records since 2000
- 996
- Peak month
- May
Bare Footed Heart Shield
- Group
- Beetles
- Records since 2000
- 993
- Scientific name
- Nebria salina
Buttercup Blacklet
- Group
- True flies
- Records since 2000
- 987
- Scientific name
- Cheilosia albitarsis
Notiophilus substriatus
- Group
- Beetles
- Records since 2000
- 987
- Peak month
- May
Weevil
- Group
- Beetles
- Records since 2000
- 987
- Scientific name
- Polydrusus cervinus
Pale-footed Horsehair Lichen
- Group
- Lichens
- Records since 2000
- 985
- Scientific name
- Bryoria fuscescens
Worm Slug
- Group
- Molluscs
- Records since 2000
- 985
- Scientific name
- Boettgerilla pallens
Horseshoe Vetch
- Group
- Flowering plants
- Records since 2000
- 982
- Scientific name
- Hippocrepis comosa
Ovate harp ground beetle
- Group
- Beetles
- Records since 2000
- 979
- Scientific name
- Amara ovata