Head continuous with the rostrum, not constricted behind the eyes, which are moderately convex, the forehead as broad as the base of the rostrum. Rostrum narrowing from the base to the antennae ; mandibles squamose, mentum bare. Antennae with the scape exceeding the hind margin of the eye, the distal joints of the funicle elongate, joint 2 longer than 1. Prothorax with the base depressed, at a lower level than the apical margin, sinuate or bisinuate. Elytra obovate, widest behind the middle, with or without shoulders. Legs with only the front femora armed with a small sharp tooth ; front tibiae only finely denticulate and with the dorsal edge curved, hind tibiae with the corbels enclosed and not ascending the dorsal margin ; joint 2 of hind tarsi not transverse ; front coxae nearer to anterior margin of prosternum ; claws free. Sternum with the metasternum not longer than a median coxa. Venter with the intercoxal process about as wide as a hind coxa.