Probably polylectic (Westrich, 1989).
Visits Echium plantagineum (Boraginaceae); Senecio jacobaea, S. integrifolius and Crepis (Asteraceae); Centaurium tenuifolium (Primulaceae) but it is not known if these are pollen sources.
Ortiz-Sanchez & Pauly (2017) report visitation to Malus domestica (Rosaceae) in Asturias, northern Spain.