A medium-sized, black and red species. In the female the clear window in the otherwise infuscate wing-tip, usually characteristic of its subgenus, is absent or poorly developed. The male subgenital plate is fairly distinctive, but must be extruded fully.
Throughout mainland Britain, although mainly coastal in the west, and most frequent in the south-east. Not recorded from Ireland (O’Connor et al., 2009), but known from the Channel Islands.
Overseas it occurs in western Europe and Fennoscandia, although absent from the Iberian peninsula and other parts of the extreme south (Wahis, 2011). Also found in central Asia and North Africa (Wolf, 1972).