Common Earwig
- Group
- Other insects
- Peak month
- July
- Records since 2000
- 5,774
Species recorded in Essex
1,113 species
Essex — county
Bishop's Mitre
- Group
- True bugs
- Peak month
- June
- Records since 2000
- 5,769
Agrimony
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 5,759
Common Plume
- Group
- Butterflies and moths
- Peak month
- August
- Records since 2000
- 5,750
Crisped Pincushion
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 5,723
Greenish Oedemera
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 5,714
European Crane Fly
- Group
- True flies
- Peak month
- September
- Records since 2000
- 5,709
Malachite Beetle
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 5,702
Hair-pointed Feather-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 5,694
Lesser Marsh Grasshopper
- Group
- Grasshoppers and crickets
- Peak month
- August
- Records since 2000
- 5,628
Common Water-boatman
- Group
- True bugs
- Peak month
- September
- Records since 2000
- 5,622
Buff-tip
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 5,604
Yellow Pimpernel
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 5,601
Limnephilus marmoratus
- Group
- Caddisflies
- Peak month
- August
- Records since 2000
- 5,591
Smooth Hawk's-beard
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 5,576
Perennial Sow-thistle
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 5,567
Hydropsyche angustipennis
- Group
- Caddisflies
- Peak month
- October
- Records since 2000
- 5,560
Ring-necked Duck
- Group
- Birds
- Peak month
- January
- Records since 2000
- 5,556
Dun-bar
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 5,535
Medium Sedge
- Group
- Caddisflies
- Peak month
- May
- Records since 2000
- 5,472
White Campion
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 5,458
Redshank [plant]
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 5,442
Common Toadflax
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 5,393
Red-brown click beetle
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 5,384
Wall Speedwell
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 5,380
Pointed-keeled Rhyzobius
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 5,369
Plant bug
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 5,318
Grammoptera ruficornis
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 5,290
Greater Periwinkle [plant]
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 5,258
St Marks Fly
- Group
- True flies
- Peak month
- May
- Records since 2000
- 5,213
Oak Bush Cricket
- Group
- Grasshoppers and crickets
- Peak month
- August
- Records since 2000
- 5,193
Wayfaring Tree
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 5,181
Lesser Stag Beetle
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 5,110
Round-keeled Rhyzobius
- Group
- Beetles
- Peak month
- October
- Records since 2000
- 5,110
Wood Speedwell
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 5,106
Nursery Web Spider
- Group
- Spiders
- Peak month
- April
- Records since 2000
- 5,102
Perforate St John's-wort
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 5,101
Short-necked gazelle beetle
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 5,096
Lesser Hornet Hoverfly
- Group
- True flies
- Peak month
- August
- Records since 2000
- 5,083
Fly Agaric
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 5,077
Snowdrop
- Group
- Flowering plants
- Peak month
- February
- Records since 2000
- 5,071
Ferruginous Bee-Grabber
- Group
- True flies
- Peak month
- July
- Records since 2000
- 5,065
Common Figwort
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 5,026
Common cord grass, Rice grass, Townsends grass
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 4,974
Wasp Beetle
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 4,967
Flowering Currant
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 4,952
Holly Leaf Gall Fly
- Group
- True flies
- Peak month
- April
- Records since 2000
- 4,934
Common Shiny Woodlouse
- Group
- Crustaceans
- Peak month
- April
- Records since 2000
- 4,917