European Hornet
- Group
- Bees, wasps and ants
- Peak month
- September
- Records since 2000
- 14,599
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- Species by county
- Northamptonshire
Species recorded in Northamptonshire
633 species
Northamptonshire — county
Lesser Bird's-claw Beard-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 14,503
Tutsan
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 14,496
Smooth Newt
- Group
- Amphibians
- Peak month
- May
- Records since 2000
- 14,467
Yellow Archangel
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 14,460
Speckled Bush Cricket
- Group
- Grasshoppers and crickets
- Peak month
- July
- Records since 2000
- 14,459
Hawthorn Shieldbug
- Group
- True bugs
- Peak month
- September
- Records since 2000
- 14,450
Bruch's Pincushion
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 14,229
22-spot Ladybird
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 14,206
Golden Dung Fly
- Group
- True flies
- Peak month
- June
- Records since 2000
- 14,206
Ladder-backed Hover Fly
- Group
- True flies
- Peak month
- April
- Records since 2000
- 14,120
Bittersweet
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 14,056
Primrose
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 13,713
Wood Sandpiper
- Group
- Birds
- Peak month
- August
- Records since 2000
- 13,506
Bush Vetch
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 13,352
Polycentropus flavomaculatus
- Group
- Caddisflies
- Peak month
- May
- Records since 2000
- 13,349
Hydropsyche pellucidula
- Group
- Caddisflies
- Peak month
- September
- Records since 2000
- 13,302
Natterer's Bat
- Group
- Mammals
- Peak month
- February
- Records since 2000
- 13,257
Mouse-tail Moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 13,215
Common Pincushion
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 13,176
Cryphaea heteromalla
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 13,047
Crescent-cup Liverwort
- Group
- Liverworts
- Peak month
- March
- Records since 2000
- 13,008
Soldier fly
- Group
- True flies
- Peak month
- June
- Records since 2000
- 12,979
Common Striated Feather-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 12,901
Red Dead-nettle
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 12,869
Pine Ladybird
- Group
- Beetles
- Peak month
- April
- Records since 2000
- 12,843
Dark Bush Cricket
- Group
- Grasshoppers and crickets
- Peak month
- August
- Records since 2000
- 12,688
Jack Snipe
- Group
- Birds
- Peak month
- October
- Records since 2000
- 12,579
Fern-leaved Hook-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 12,557
Common long-eared bat
- Group
- Mammals
- Peak month
- June
- Records since 2000
- 12,493
Oxeye Daisy
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 12,477
Caspian Gull
- Group
- Birds
- Peak month
- January
- Records since 2000
- 12,452
Long-beaked Water Feather-moss
- Group
- Mosses
- Peak month
- August
- Records since 2000
- 12,273
Western waterweed, Nuttall's waterweed
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 12,267
Wild Angelica
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 12,214
Enchanter's nightshade, Witch's grass
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 12,056
Wood White
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 11,917
Endive Pellia
- Group
- Liverworts
- Peak month
- September
- Records since 2000
- 11,837
River Feather-moss
- Group
- Mosses
- Peak month
- April
- Records since 2000
- 11,799
Common Flower Fly
- Group
- True flies
- Peak month
- July
- Records since 2000
- 11,730
Crested Dog's-tail
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 11,688
Thickpoint Grimmia
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 11,680
Lesser Pocket-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 11,582
Volucella pellucens
- Group
- True flies
- Peak month
- June
- Records since 2000
- 11,473
Water Mint
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 11,367
Creeping Cinquefoil
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 11,337
Agapetus fuscipes
- Group
- Caddisflies
- Peak month
- April
- Records since 2000
- 11,335
Frizzled Pincushion
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 11,282