About Bibio pomonae (Fabricius, 1775)
Bibio pomonae (Fabricius, 1775) adults reach a body length of approximately 10–13 millimetres (0.39–0.51 in), and their wings measure 8–12 millimetres (0.31–0.47 in) in length. The basic body color of this species is shiny black, with a long black abdomen, deep crimson-red femurs, and dark tibiae and tarsi. The front tibia bears a pair of large spurs. Its wings are milky-white, with darkened veins in the costal area and a dark spot on the leading edge. The 10-segmented antennae are relatively short and thick. Males and females of Bibio pomonae have strong sexual dimorphism: holoptic males have very large eyes and a flattened abdomen, while females have a small head, small eyes, and a pointed abdomen. The larvae of this species are reddish brown. This species is distributed across most of the Palearctic realm, which includes Europe and North Asia. In southern Europe, it only occurs in mountain regions. This fly can be found in hedge rows of hill countries, moorland, mountain birch forests, woodland edges, fields, and wetlands.
