Heracleum sphondylium
They can be encountered from May through September, feeding on nectar or pollen of various Asteraceae species ("Hieracium pilosella", Thistle, "Cirsium" species, etc.), Apiaceae species (Parsley "Petroselinum" sp, . "Heracleum sphondylium"), Onagraceae ("Chamerion angustifolium"), Lamiaceae ("Teucrium scorodonia") and Rosaceae species (Blackberries, "Rubus fruticosus" sp.).