Trachusa sexpunctata SITSCHEGLOFF 1826; Stelis octomaculata SMITH 1843; Stelis sexsignata COSTA 1858;
A rare cleptoparasitic bee which can sometimes be reared in small numbers from the stem-nests of its host, the megachiline bee Hoplitis claviventris.
Widely distributed in southern England and East Anglia, Wales and in Merseyside (South Lancashire). It can be expected wherever H. claviventris is established. Widespread in Europe, from Fennoscandia south to the Pyrenees, and east to Greece and Russia (east of the Urals).