Oligolectic on Apiaceae: Pollen sources not known for British populations, but considered to be oligolectic on Apiaceae; eg Daucus carota, Heracleum sphondylium, Pastinaca sativa and Torilis (these are probably pollen sources). It is also attracted to Melilotus (Fabaceae); Rubus (Rosaceae); Caucalis, Conium (Apiaceae); Senecio jacobaea and Achillea (Asteraceae) but these may be only nectar sources.
Dylewska (1987) lists the following forage plants: Salix (Salicaceae); Euphorbia cyparissias (Euphorbiaceae); Anthriscus sylvestris, Daucus carota, Falcaria rivini, Falcaria vulgaris, Aegopodium podagraria, Selinum cavifolium Laserpitium latifolium (Apiaceae); Veronica chamaedrys (Scrophulariaceae); Ranunculus bulbosus (Ranunculaceae); Taraxacum officinale, Achillea millefolium (Asteraceae), Rorippa amphibia (Brassicaceae); Campanula (Campanulaceae) and various unspecified Brassicaceae.
Westrich (1989) lists the following pollen sources in Germany: Daucus carota, Falcaria vulgaris, Heracleum sphondylium, Angelica sylvestris, Peucedanum oreoselinum, Torilis japonica (Apiaceae)
Tomozei (2014), citing others, states that the females visit flowers of Anacardiaceae, Apiaceae, Asteraceae, Brassicaceae, Campanulaceae, Euphorbiaceae, Fabaceae, Ranunculaceae, Rosaceae and Salicaceae families, although the first generation seems to prefer flowers of the Brassicaeae family and the second one has been found more on Apiaceae species (Kocourek 1966, Osytshnjuk 1977, Dylewska 1987). Some authors suggests that the species is oligolectic on Apiaceae (Schmid-Egger and Scheuchl 1997).