Pesenko in Banaszak (1995) state that this is an oligolectic species, specialising in Brassicaceae. However, Tomozii (citing others) indicates that the species is polylectic with a strong preference for Brassicaceae. He reports pollen foraging at Asteraceae (Anthemis, Senecio vernalis); Apiaceae (Falcaria, Anthriscus, Daucus carota, Pastinaca); Caryophyllaceae (Stellaria) and Resedaceae (Reseda lutea), but prefer the Brassicaceae (Berteroa incana, Erucastrum armoracioides, Isatis tinctoria, Sisymbrium altissimum, Sisymbrium loeselii, Barbarea vulgaris, Lepidium draba, Sinapis arvensis, Rapistrum perenne) (Franz 1982, Pittioni and Stoeckhert 1950, Osytshnjuk 1977, Osytshnjuk et al. 2005).
The spring generation visits Cardaria draba, Sisymbrium altissimum,Brassica sp., Sinapis sp., Capsella bursa-pastoris (Brassicaceae); Stellaria sp. (Caryophyllaceae); Reseda lutea (Resedaceae)
The second generation visits Falcaria sp, Anthriscus, Daucus carota, Pastinaca (Apiaceae); Berteroa sp., Cardamine nasturtium (Brassicaceae); Reseda sp. (Resedaceae); Anthemis sp. (Asteraceae) (Dylewska, 1987)