Nothorhaphium is a genus of flies belonging to the family Dolichopodidae. It includes four species from Australia and a single species from New Guinea. Nothorhaphium superficially resembles the genus Rhaphium, but it belongs in the subfamily Sympycninae and is thought to be closely related to the genera Syntormon and Parasyntormon. The name of the genus is derived from the Greek (, "false"), and Rhaphium.
Species Nothorhaphium aemulans (Becker, 1922) – widespread in Australia, Norfolk Island Nothorhaphium callosum Bickel, 1999 – West Australia, Victoria Nothorhaphium curalo Bickel, 1999 – New South Wales, Victoria, Tasmania Nothorhaphium nudicorne Bickel, 1999 – Tasmania, South Australia, West Australia Nothorhaphium oro Bickel, 1999 – Papua New Guinea
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