Sightings summary: 2020

Annual overview of butterflies reported to the Dorset website*

Total records

742 butterflies of 13 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
Brimstone 19 Jan
Comma 19 Jan
Green-veined White 16 Mar
Holly Blue 25 Mar
Large Tortoiseshell 03 Mar
Large White 24 Mar
Orange Tip 26 Mar
Peacock 05 Jan
Red Admiral 02 Jan
Small Copper 24 Mar
Small Tortoiseshell 19 Jan
Small White 01 Mar
Speckled Wood 21 Mar

Flight times

Duration between earliest and latest reported sightings of adult butterflies.

Seen a butterfly? Report 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.