The following is a list of butterflies usually seen each year in the County:

Skippers:

Dingy Skipper - Iain H Leach

Dingy Skipper (UK BAP Species*)
Grizzled Skipper (UK BAP Species)
Small Skipper
Essex Skipper
Large Skipper

Whites:
Orange Tip
Green-veined White
Large White
Small White
Clouded Yellow (small numbers)
Brimstone

Coppers & Hairstreaks:
Small Copper
Green Hairstreak
Purple Hairstreak
Brown Hairstreak (UK BAP Species)
White-letter Hairstreak (UK BAP Species)
Black Hairstreak (UK BAP Species - small numbers)  

Holly Blue - Iain Leach

Blues:
Holly Blue
Brown Argus
Common Blue

Admirals & Vanessids:
White Admiral (UK BAP Species)
Small Tortoiseshell
Comma
Painted Lady
Red Admiral
Peacock 

Fritillaries:
Marsh Fritillary (UK BAP Species - small numbers)
Duke of Burgundy (UK BAP Species - small numbers)
Dark Green Fritillary (small numbers)
Silver-washed Fritillary (small numbers)

Marbled White - Iain H Leach

Browns:
Wall Brown (UK BAP Species)
Speckled Wood
Marbled White
Large Heath (UK BAP Species)
Small Heath (UK BAP Species)
Gatekeeper or Hedge Brown
Grayling (UK BAP Species)
Meadow Brown
Ringlet

*UK BAP: UK Biodiversity Action Plan