Dolerus stygius

Alt Name
Dolerus megapterus

This is one of several very similar dark coloured Dolerus species and detailed examination is necessary in order to identify them to species level.

Photo ID?

Damp areas, fens, marshes and similar areas where sedges occur.

When to see it

April and May.

Life History

The larvae are associated with sedges.

UK Status

Infrequent in Britain. Up until the 1950s Dolerus stygius was only known for sure from a few sites in the Highlands of Scotland. It has been recorded much more widely in the last decade or so with sparse scattered records from northern England and as far south as Surrey and Wiltshire.

VC55 Status

Rare or under recorded in Leicestershire and Rutland. The Broughton Astley specimen of 27th April 2015 is believed to be the first record of this species in VC55.

Leicestershire & Rutland Map

UK Map