Chimney Sweeper Odezia atrata
Wingspan 23-27 mm.
This unusual species flies in the daytime, and prefers bright sunshine. It is completely black except for the white fringes at the tips of the forewings.
It inhabits grassy meadows, dry chalky and limestone districts, and is locally distributed throughout most of Britain.
The single generation flies in June and July, and the larvae feed mainly on the flowers of pignut (Conopodium majus).