First sightings of 2017

Which butterflies emerged when?

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

Species 2016 2017
Adonis Blue 12 May 29 Apr
Brimstone 17 Jan 04 Feb
Brown Argus 06 May 29 Apr
Brown Hairstreak 20 Jul 12 Jul
Chalkhill Blue 12 Jul 06 Jul
Clouded Yellow 25 Mar 26 Mar
Comma 14 Mar 18 Feb
Common Blue 06 May 14 Apr
Dark Green Fritillary 27 Jun 30 May
Dingy Skipper 28 Apr 18 Apr
Duke of Burgundy 13 May 23 Apr
Essex Skipper 06 Jul 26 Jun
Gatekeeper 25 May 13 Jun
Grayling 05 Jul 18 Jun
Green Hairstreak 09 Apr 07 Apr
Green-veined White 11 Apr 03 Apr
Grizzled Skipper 20 Apr 09 Apr
Holly Blue 12 Apr 25 Mar
Large Skipper 26 May 24 May
Large White 31 Mar 30 Mar
Long-tailed Blue 12 Sep -
Lulworth Skipper 27 May 10 May
Marbled White 07 Jun 04 Jun
Marsh Fritillary 08 May 10 May
Meadow Brown 14 May 24 May
Orange Tip 11 Apr 28 Mar
Painted Lady 03 Jan 16 Feb
Peacock 15 Feb 19 Jan
Purple Emperor 13 Jul 08 Jul
Purple Hairstreak 22 Jun 17 Jun
Red Admiral 06 Jan 04 Jan
Ringlet 16 Jun 10 Jun
Silver-spotted Skipper 06 Aug -
Silver-studded Blue 06 Jun 03 Jun
Silver-washed Fritillary 21 Jun 14 Jun
Small Blue 23 Apr 21 Apr
Small Copper 18 Apr 27 Mar
Small Heath 06 May 18 Apr
Small Pearl-bordered Fritillary 10 Jun 04 Jun
Small Skipper 20 Jun 12 Jun
Small Tortoiseshell 06 Jan 18 Jan
Small White 10 Mar 13 Mar
Speckled Wood 25 Mar 25 Mar
Wall Brown 17 Apr 19 Apr
White Admiral 21 Jun 14 Jun
White-letter Hairstreak 02 Jul 15 Jun
Wood White - 26 May

More data