A univoltine species, flying from the end of May or beginning of June to mid-July and even August (Stanisavljević, 2000, Amiet et al., 2004).
Parasites: Almost certainly the bee Dioxys tridentata is a cleptoparasite of this species (Westrich, 1989).
Banaszak & Romasenko (1998) also list Stelis phaeoptera (Apidae: Megachilinae) and the wasps Chrysis ignita, Chrysis austriaca, Chrysis pustulosa, Chrysis hybrida, Chrysis ruddii, Chrysis sybarita and Chrysis simplex (Chrysididae).