Working to save Dorset's butterflies and moths

75% of British butterflies and 66% of common moths have declined in living memory. Our efforts include conservation work, monitoring butterflies and moths, and raising awareness of the problems they face. There are lots of ways you can help.  Find out more

For Butterfly Conservation’s national HQ visit
A greenish yellow butterfly resting on some vegetation
Brimstone. Photo: Warren Port

Low butterfly numbers so far in 2024

Butterfly numbers in Dorset reported to this website are down 50% on this time last year. Read more...

A picture appearing to just be leaves on a bush
Brimstone chrysalis. Photo: Martin Raper

Can you see the chrysalis?

We’ve been sent this photo by one of our members. There is a Brimstone chrysalis in the picture: can you see it? Read more...

Orange butterfly with complex markings
Marsh Fritillary on Ballard Down. Photo: Shona Refoy

Marsh Fritillaries in Purbeck??

We’ve had two photos sent in recently showing Marsh Fritillaries in Purbeck. One was on Godlingston Heath (grid ref SZ 016810), whilst the other was on Ballard Down (SZ 033811) where the butterfly was described as Read more...

Three people searching the ground or writing in a notebook
Ant hunting on Broadcroft. Photo: Georgie Laing

Hunting for ants on Portland

The Silver-studded Blue has been declining on Portland, so could one of the reasons be anything to do with their host ants? Read more...

View all

Events diary

View all

Recent sightings

Report a sighting
View all

Photo gallery

A black butterfly with white markings on a green leaf
White Admiral. Photo: Gary Holderness

"I went to RSPB Garston Wood this morning 02/07/24 hoping to see if Purple Emperors were on the wing but unfortunately I didn't see any. There were however still butterflies about..." Read more...

View all

Species spotlight

Butterfly with open wings: mainly orange with black and white and tiny specks of blue See profile

Painted Lady

  • Family: Vanessids
  • Size: Large  Wingspan: 67mm
  • Regional priority: Low

Join now Join Butterfly Conservation to help us save butterflies, moths and habitats.

DonateMake a donation to help us with our work to save butterflies and moths*.

*Donations received via this link will come to Dorset Branch.

Our promise to you:

  • We will never swap, sell or rent your details to anyone.
  • We will always follow the strict code of conduct set out by the Fundraising Regulator.
  • You can change how you hear from us or unsubscribe from our mailing lists at any time, just let us know.