Machimus setibarbus is a species of fly in the family Asilidae, the robber flies and assassin flies.
Distribution This species is widespread in Europe (Bulgaria, Bosnia and Herzegovina, Denmark, Croatia, Germany, Finland, Greece, Italy, former Yugoslavia, Norway, Russia, Poland, Romania, Sweden, Switzerland, Spain, Czech Republic, Slovakia), North Africa (Tunisia), and in the Near East (Israel).Fauna Europaea
Description Machimus setibarbus can reach a body length of about . Fritz Geller-Grimm, Torsten Dikow, Robert J. Lavigne Description of M. setibarbus in Robber flies of Germany These robber flies have a face beard with distinctly stout bristles and four-eight scutellar marginal bristles. Legs are entirely black, but sometimes knees are paler. Moreover front femur do not show ventrally distinct stout bristles, but only hairs. Fritz Geller-Grimm, Torsten Dikow, Robert J. Lavigne Identification key to the species of the Machimus-group
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