Univoltine, with an extended flight period. Females from April to late October; males from late July to early September.
Label data from a few Spanish specimens shows that females are active in May and June and males in July (Ortiz-Sanchez & Pauly, 2017).
Parasites and predators Both Sphecodes ephippius and S. puncticeps have been recorded as cleptoparasites of this species (R.C.L.Perkins, 1923, 1924).