Distribution
The species is widely spread across western Europe between Finland, Lithuania and Spain, including Britain and Ireland. In Britain it is one of the most commonly recorded leafcutter species; it is absent from the north Midlands and from mid- and north Wales, but occurs from Cornwall all the way to Inverness, becoming scarcer with latitude.
Habitat
"Megachile willughbiella" is a leafcutter bee found in gardens and brownfield areas especially in cities. The nest is built in soil or in wood; the cells are made of leaves. The species has kleptoparasites from the leafcutting cuckoo bee genus "Coelioxys", such as "C. quadridentata", "C. rufescens" and "C. elongata". Pollen is collected from a wide variety of flowers including Asteraceae, Fabaceae and Onagraceae, with a preference for Campanulaceae.References:
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