A large, robust mining bee, reminiscent of Andrena cineraria in overall appearance but in the female lacking the distinct transverse inter-alar band of that species and the hind tibia is clad with mainly white hairs, not black. The gaster of both sexes has a conspicuous blue cast; wings strongly infuscated.
This attractive bee is absent from mainland Britain and known only from the Channel Islands, where it has been reported from Jersey, Guernsey and Alderney (though there are no recent records from the latter island). It is described as being very common in Guernsey (C David, pers. comm.).
This is a central and southern European species, ranging from Holland and Poland south to Spain, the Balearics, Sardinia, Sicily, Malta, Corsica, and east to the former Czechoslovakia. It is widely distributed in North Africa, from Morocco to Libya.