Sightings summary: 2018

Annual overview of butterflies reported to the Dorset website*

Total records

44,853 butterflies and 48 species reported to the website this year.

Recording activity

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

Top butterflies

TIP Click chart segments to see numbers reported.

Species count

Total records by species.

First sightings

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

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

Flight times

Duration between earliest and latest reported sightings of adult butterflies.

Seen a butterfly? Submit a sighting

*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.