Black, nearly opaque (♂), or dull (♀), beak and head strongly not densely punctured; prothorax punctured towards the middle, coarsely granose at the sides, with a narrow sometimes indistinct dorsal line; elytra rugose and punctulate, with rows of larger punctures in which are scattered pale scales; beneath with small scattered patches of ochreous scales.

Length 12-14 mm. ; 0.45- 0.6 inch.

California: Dr. Horn and Mr. Crotch. The patches of scales beneath are on the prosternum in front of the coxae; the outer angle of the metasternum, and at the sides of the ventral sutures. This singular insect has some resemblance in appearance to Molytes, but is more slender, and the characters totally unlike. The elytra are more strongly declivous behind than in the other genera, being in fact perpendicular towards the tip.