Oncometopia is a genus of sharpshooters found in North and South America.

The ocelli are each roughly equidistant from the median line of the crown and the adjacent anterior eye angle (alternatively, they may be slightly closer to the latter).

The antennal ledges each have longitudinal fovea and are carinate dorsally, and the anterior margins are oblique.

The clypeus is strongly convex (except in female O. fuscipennis) and its dorsomedial surface is coarsely granular.

[1] The species O. orbona is one of the two primary natural vectors of Xylella fastidiosa subsp.