British pollen sources not recorded, but considered to be polylectic; visits numerous species, including Geranium sanguineum (Geraniaceae); Rubus, Potentilla (Rosaceae); Smyrnium olusatrum, Crithmum, Angelica, Oenanthe (Apiaceae); Euphorbia (Euphorbiaceae); Veronica chamaedrys (Scrophulariaceae); Senecio, Pulicaria dysenterica, Solidago, Bellis perennis, Achillea, Matricaria, Sonchus and Taraxacum (Asteraceae).
Weissmann et al (2017) state that in the Azores it has been observed on Solidago azorica (Asteraceae).
Pollen sources not apparently published for elsewhere in Europe.