Sightings summary: 2017

Annual overview of butterflies reported to the Dorset website*

Total records

30,404 butterflies and 46 species reported to the website so far this year.

Recording activity

Number of species records by date seen (scroll right for key).

Top butterflies

Most recorded species.

Species count

Total records by species.

First sightings

Earliest dates on which adult butterflies were reported to the website.

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

Flight times

Duration between earliest and latest reported sightings of adult butterflies.

*Please note: The charts shown on this page are drawn only from casual sightings submitted to this website. They are therefore not statistically significant, but do serve as an indication of what’s going on in the Dorset butterfly world. The records from this website will be added to a lot more data collected throughout the year, and used to compile the five-yearly Butterfly Atlases for Dorset and the UK. These are vitally important because they show the location of species and, over time, measure distribution changes and the possible effects of climate change. This gives us the information we need to help various species in appropriate ways.