As this is a cleptoparasitic species, all flower visits will be for nectar only.
Known nectar sources include Melilotus alba, Lotus corniculatus (Fabaceae); Leonurus cardiaca, Stachys recta, Salvia (Lamiaceae); Echium vulgare, Anchusa arvensis (Boraginaceae); Knautia arvensis (Dipsacaceae); Epilobium (Onagraceae) (Westrich, 1989).
Flower records from specimen and observation data are listed as: Convolvulus althaeoides ssp. tenuissimus (Convolvulaceae); Ballota acetabulosa, Micromeria juliana, Stachys cretica ssp. cretica, Coridothymus capitatus (Lamiaceae)