Symphoromyia (meaning bane/blight fly in Greek) is a genus of predatorysnipe flies. Unusually for Rhagionids, some species of Symphoromyia are known to feed on mammalblood, including human blood. Symphoromyia species are stout bodied flies from 4.5 to 9 mm and with a black, grey or gold thorax, and the abdomen is coloured grey, black, or both black and yellow, black terminating with yellow, to completely yellow. The wings are hyaline or lightly infuscate.
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