Mantid Shoreflies

Ochthera is a genus of flies in the family of shore flies (Ephydridae). The genus is distinctive because of the swollen raptorial forelegs. The larvae are predaceous on midge larvae while the adults feed on midges and mosquitoes. The genus is found around the world with about 37 species. The species Ochthera chalybescens has been shown to prey on African malaria vectors.