Polylectic. Pollen sources in the British Isles not known, but it has been seen visiting Rubus (Rosaceae) and Senecio (Asteraceae).
In Germany, pollen records from the following species: Hieracium pilosella (Asteraceae); Vaccnium myrtillus, Vaccinium vitis-idaea (Ericaceae); Ranunculus acris (Ranunculaceae) and Rubus fruticosus (Rosaceae)(Westrich, 1989).
Ebmer (1971) lists Solidago (Asteraceae).
Pawlikowski & Kruszynski (1997) list Rosa rugosa (Rosaceae) as a forage source in Poland.
In Finland, the species is reported to visit Geum rivale and Potentilla palustris (Rosaceae) (Söderman & Leinonen, 2003).