Thistle Gall Fly - Urophora cardui
A small but striking fly. The male's wings have darker markings.
Grasslands etc. where Creeping Thistle is present.
It flies from May to August/September.
It lays its eggs on Creeping Thistle (Cirsium arvense). After hatching, the larvae burrow into the stem of the plant and form a gall (or swelling).
Widespread in the south of England.
Fairly common in Leicestershire and Rutland
Leicestershire & Rutland Map
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