A bivoltine species: mid April to June, and later from mid July to the beginning of September. Second brood specimens are usually more abundant than those of the spring generation (Tomozei et al, 2014).
Dardón Peralta (2010) reports activity from April to August in 2 generations
Parasites The bee Nomada flavoguttata is cited as a cleptoparasite of this species (Söderman & Leinonen, 2003; Amiet, 2010))