Dasyrhamphis umbrinusDasyrhamphis umbrinus is a species of horse fly, a fly in the family Tabanidae, native to Europe and near East Asia.DistributionThis species is present in Europe and in the Near East.DescriptionDasyrhamphis umbrinus can reach a body length of about. These 'horse flies' are mostly blackish, with clear showing a distinct dark brown spot close to the middle of the anterior margin and near the base of discal cell. Eyes shows a microscopical pubescence. Frontal calli are well-developed. The 3rd antennal segment is slender and less developed.