IdentificationAdults are 6.5 - 9.0 mm in length. Adults are elongate, dark to brown with a faint bronze luster. Antennae, mouth parts and legs are reddish brown in colour. Eyes are convex and large. Prothorax is rounded with truncated anterior margins, sinuated at the base, hind angles denticulate. Elytra parallel-sided at middle with coarsely punctured striations which are notable at the base and flattened at the apex. Males with convex prosternum, hind tibiae bear brush like projections. Male genitalia smaller, convex at the base and straight at the apex, left margin protruded and hooks on lateral lobes rudimentary (Lindroth, 1968).