First sightings

Which Dorset butterflies emerged when?

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

Key: Earliest emergence / Latest emergence

Species 2013 2014 2015 2016 2017
Adonis Blue 06 Jun 04 May 07 May 12 May 29 Apr
Brimstone 18 Feb 09 Jan 08 Jan 17 Jan 04 Feb
Brown Argus 31 May 03 May 30 Apr 06 May 29 Apr
Brown Hairstreak 02 Aug 12 Jul 21 Jul 20 Jul 12 Jul
Chalkhill Blue 15 Jul 30 Jun 24 Jun 12 Jul 06 Jul
Clouded Yellow 01 Jun 13 Apr 06 Apr 25 Mar 26 Mar
Comma 05 Mar 08 Mar 18 Mar 14 Mar 18 Feb
Common Blue 17 May 11 Apr 19 Apr 06 May 14 Apr
Dark Green Fritillary 25 Jun 08 Jun 06 Jun 27 Jun 30 May
Dingy Skipper 07 May 15 Apr 17 Apr 28 Apr 18 Apr
Duke of Burgundy 22 May 03 May 12 May 13 May 23 Apr
Essex Skipper 12 Jul 21 Jun 24 Jun 06 Jul 26 Jun
Gatekeeper 11 Jul 28 Jun 24 Jun 25 May 13 Jun
Grayling 08 Jul 29 Jun 24 Jun 05 Jul 18 Jun
Green Hairstreak 04 May 10 Apr 13 Apr 09 Apr 07 Apr
Green-veined White 23 Apr 01 Apr 08 Apr 11 Apr 03 Apr
Grizzled Skipper 02 May 15 Apr 16 Apr 20 Apr 09 Apr
Holly Blue 06 Apr 08 Mar 06 Apr 12 Apr 25 Mar
Large Skipper 25 Jun 26 May 28 May 26 May 24 May
Large White 17 Apr 13 Apr 05 Apr 31 Mar 30 Mar
Long-tailed Blue - - 29 Aug 12 Sep -
Lulworth Skipper 16 Jul 21 May 21 May 27 May 10 May
Marbled White 01 Jul 08 Jun 11 Jun 07 Jun 04 Jun
Marsh Fritillary 25 May 06 May 04 May 08 May 10 May
Meadow Brown 19 Jun 01 Jun 04 Jun 14 May 24 May
Orange Tip 06 Apr 30 Mar 19 Mar 11 Apr 28 Mar
Painted Lady 01 Jan 01 Mar 11 Apr 03 Jan 16 Feb
Peacock 01 Jan 02 Jan 09 Jan 15 Feb 19 Jan
Purple Emperor 18 Jul 05 Jul 18 Jul 13 Jul 08 Jul
Purple Hairstreak 11 Jul 22 Jun 01 Jul 22 Jun 17 Jun
Red Admiral 01 Jan 08 Jan 02 Jan 06 Jan 04 Jan
Ringlet 26 Jun 20 Apr 21 May 16 Jun 10 Jun
Silver-spotted Skipper 08 Aug 30 Jul 08 Aug 06 Aug 06 Aug
Silver-studded Blue 09 Jun 08 Jun 08 Jun 06 Jun 03 Jun
Silver-washed Fritillary 06 Jul 15 Jun 24 Jun 21 Jun 14 Jun
Small Blue 22 May 06 May 28 Apr 23 Apr 21 Apr
Small Copper 26 May 30 Mar 12 Apr 18 Apr 27 Mar
Small Heath 18 May 29 Apr 29 Apr 06 May 18 Apr
Small Pearl-bordered Fritillary 19 Jun 07 Jun 13 Jun 10 Jun 04 Jun
Small Skipper 09 Jun 13 Jun 08 Jun 20 Jun 12 Jun
Small Tortoiseshell 17 Feb 09 Jan 02 Jan 06 Jan 18 Jan
Small White 16 Apr 01 Mar 22 Mar 10 Mar 13 Mar
Speckled Wood 27 Apr 07 Feb 06 Mar 25 Mar 25 Mar
Swallowtail 31 May 02 Jul 15 Aug - -
Wall Brown 17 May 14 Apr 19 Apr 17 Apr 19 Apr
White Admiral 09 Jul 18 Jun 24 Jun 21 Jun 14 Jun
White-letter Hairstreak 05 Jul 14 Jun 25 Jun 02 Jul 15 Jun
Wood White 09 Jun - - - 26 May