Univoltine, with an extended flight period. Females from late March or April to late September, males from late July to mid September.
Label data from a few Spanish specimens shows that females are active in (at least) April and May, and males in July (Ortiz-Sanchez & Pauly, 2017).
Parasites: Sphecodes geoffrellus and Nomada sheppardana are possible cleptoparasites of this species, the latter having been taken in its burrows (R.C.L. Perkins, 1923). Westrich (1989) cites the bee Nomada distinguenda as a possible cleptoparasite.