Acrosathe annulata

Acrosathe annulata, also known as coastal silver-stiletto, is a species of stiletto fly belonging to the family Therevidae. It is a Palearctic species that is widely distributed in Europe.

Description
"Male entirely covered with silvery pubescence; female without any shining black frontal callus. Halteres whitish. Femora blackish in both sexes. Fourth posterior cell closed".

Biology
Its habitats are sand dunes and sand hills. They rest on hot bare sand among marram.