About Melanostoma scalare (Fabricius, 1794)
This hoverfly species, Melanostoma scalare, reaches a body length of 7–10 mm (0.28–0.39 in). Individuals of this species have a shining black thorax. Males of the species are longer and slimmer than females, with a noticeably thinner abdomen. The yellow abdominal markings of males are roundish or diamond-shaped, while females have triangular yellow abdominal patches. This species is distributed across most of Europe, the Near East, and North Africa. It also occurs in the eastern portions of the Afrotropical realm as far south as Zimbabwe, and across the entire Indomalayan realm extending to New Guinea.
