Sepsis cynipsea


    A small blackish fly. It is about 2.5 to 3 mm long and has dark wing spots (one on each wing) typical of the Sepsis genus. This is a difficult group to identify and specimens really need microscopic examination to arrive at the species.


    Around fresh dung.

    When to see it

    Although the species might be encountered at any time, the main period is between May and September with a peak in July and early August.

    Life History

    The flies are active by day, and the sexes usually meet for mating around fresh dung where the eggs will be laid.

    UK Status

    Widespread and fairly frequent in Britain.

    VC55 Status

    Fairly frequent in Leicestershire and Rutland.

    Leicestershire & Rutland Map

    UK Map