First sightings of 2018

Which butterflies emerged when?

These are the earliest dates on which each species of adult butterfly was reported to the website.

Species 2017 2018
Adonis Blue 29 Apr 14 May
Brimstone 04 Feb 28 Jan
Brown Argus 29 Apr 07 May
Brown Hairstreak 12 Jul -
Chalkhill Blue 06 Jul -
Clouded Yellow 26 Mar 18 Apr
Comma 18 Feb 15 Mar
Common Blue 14 Apr 30 Apr
Dark Green Fritillary 30 May 02 Jun
Dingy Skipper 18 Apr 30 Apr
Duke of Burgundy 23 Apr 07 May
Essex Skipper 26 Jun -
Gatekeeper 13 Jun -
Grayling 18 Jun -
Green Hairstreak 07 Apr 25 Apr
Green-veined White 03 Apr 14 Apr
Grizzled Skipper 09 Apr 20 Apr
Holly Blue 25 Mar 05 Apr
Large Skipper 24 May 26 May
Large White 30 Mar 17 Apr
Lulworth Skipper 10 May 18 May
Marbled White 04 Jun 06 Jun
Marsh Fritillary 10 May 14 May
Meadow Brown 24 May 27 May
Orange Tip 28 Mar 14 Apr
Painted Lady 16 Feb 22 Apr
Peacock 19 Jan 12 Jan
Purple Emperor 08 Jul -
Purple Hairstreak 17 Jun 17 Jun
Red Admiral 04 Jan 05 Jan
Ringlet 10 Jun 11 Jun
Silver-spotted Skipper 06 Aug -
Silver-studded Blue 03 Jun 08 Jun
Silver-washed Fritillary 14 Jun -
Small Blue 21 Apr 13 May
Small Copper 27 Mar 18 Apr
Small Heath 18 Apr 07 May
Small Pearl-bordered Fritillary 04 Jun 11 Jun
Small Skipper 12 Jun 28 May
Small Tortoiseshell 18 Jan 16 Feb
Small White 13 Mar 26 Mar
Speckled Wood 25 Mar 16 Apr
Wall Brown 19 Apr 04 May
White Admiral 14 Jun 15 Jun
White-letter Hairstreak 15 Jun 18 Jun
Wood White 26 May -
Large Tortoiseshell - 20 Apr

More data