Rhopalosyrphus is a genus of hoverflies, with nine known species. The adults flies mimic wasps, such as Zethus. The larvae are predators of ant brood. They are native to from southern United States to northern Argentina.
Species Sensu stricto Rhopalosyrphus australis Thompson, 2003 Rhopalosyrphus ecuadoriensis Reemer, 2013 Rhopalosyrphus guentherii (Lynch Arribálzaga, 1891) (= R. carolae Capelle, 1956) Rhopalosyrphus ramulorum Weems & Deyrup, 2003 Rhopalosyrphus robustus Reemer, 2013 Sensu lato Rhopalosyrphus abnormis (Curran, 1925) Rhopalosyrphus abnormoides Reemer, 2013 Rhopalosyrphus cerioides (Hull, 1943) Rhopalosyrphus oreokawensis Reemer, 2013
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