Genus Jamaha Gnezdilov & O’Brien, 2008

Diagnosis. Metope elongate, enlarged before clypeus, with median carina running through the postclypeus only. Fore wings widely rounded apically. Radius, median, and cubitus anterior bifurcate (R 2 M 2 CuA2). Hind tibia with single tooth distally. Hind margin of pygofer (males) with long process medially. Aedeagus without ventral hooks.