Cleptoparasitic: Hosts; Andrena cineraria (R.C.L. Perkins, 1919g) and, on mainland Europe, attacking both this species and A. vaga (F.K. Stöckhert, 1933; Vleugel, 1947; Kocourek, 1966). In one hour, Kocourek (1966) collected over 100 females of this species as they visited a nesting aggregation of A. vaga. The arrival of more continued beyond this time, the Nomada being accredited with having exterminated a large part of the host aggregation.
Smit (2018)(citing others) also suggests Andrena barbareae and Andrena danuvia as hosts.