Bibio johannis

Length 4 to 7 mm. A black fly with shiny black thorax. The head and legs are both very hairy. The male has a very prominent dark stigma in each wing, and the lower parts of the legs are orange.

Grassland and well vegetated areas and hedgerows and also over water.

March to June.

Breeds in soil and sometimes seen in swarms.

Fairly frequent and widespread in England and Wales.

Fairly frequent in Leicestershire and Rutland.