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Make it a butterfly Bank Holiday in Dorset

PUBLISHED: 15:00 02 May 2014 | UPDATED: 15:04 02 May 2014

Brimstone by Matt Berry, Butterfly Conservation

Brimstone by Matt Berry, Butterfly Conservation


Butterfly Conservation Dorset is asking people to visit historic Maiden Castle near Dorchester this bank holiday weekend to record butterfly sightings.

The wildlife charity are concerned that common species normally found at the Iron Age hillfort, like the Brimstone, may have completely disappeared.

The sulphur-coloured Brimstone was once a commonly seen butterfly at the site, but has not been spotted there since 2010.

Brimstone adults re-emerge from hibernation in early spring to find a mate and suitable egg-laying sites.

They are often spotted in gardens in pairs and always sit with their wings closed. The male’s wings are a clear yellow, but the female can be identified by her slightly paler upper wings, which have a green tint.

Dorset County Butterfly Recorder Bill Shreeves, said: “It’s really important that we have fresh records so we can see what’s going on at Maiden Castle.

“As well as being one of the largest Iron Age hillforts in Europe, it’s home to a number of butterflies, including the rare Adonis Blue and Dingy Skipper. They seem to being doing ok, but we’re extremely concerned about the lack of sightings of our common species.”

He added: “The Brimstone is one of the easiest butterflies to identify, so we’re asking people to make the most of the long weekend, experience a bit of history and help us by looking for this large, yellow butterfly.”

Sightings will be recorded by Butterfly Conservation, providing vital scientific information on how butterflies are faring in this area.

If you spot any butterflies at Maiden Castle, please record it with Butterfly Conservation Dorset by following this link and filling in the online form:


Any sightings you submit will need to include the map grid reference for the area, which is: SY6688 and SY6788.


Look forward to Dorset Magazine June edition for the first of our series on local butterflies -


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