Coremacera marginata var. marginata (Fabricius, 1775)
Coremacera marginata var. pontica Elberg, 1968
Distribution and habitat
This species occurs in most of Europe and in the Near East.[2] These flies can be encountered in grasslands and woodlands,
Description
The adults of Coremacera marginata grow up to 7–10 millimetres (0.28–0.39in) long. These flies have a slender, dark greyish body. The prominent eyes are reddish. The brown-yellowish antennae are forward-pointing, with a hairy 3rd segment and a whitish arista. The dark grey wings are mottled with greyish spots.[3][4]
Biology
Adults feed on nectar or sipping dew. Larvae prey on several terrestrial genera of snails.[5]
↑Knutson, L. V. (1973). Biology and immature stages of Coremacera marginata F. a predator of terrestrial snails (Dipt. Sciomyzidae). Insect Systematics & Evolution 4(2) 123-33.