Oblong, subcylindrical. Brown or blackish with yellowish-brown and pale gray pubescence intermixed, exhibiting no distinct pattern; tibiae reddish, annulate with black. Thorax nearly twice as long as wide at base, convex, narrowed in front; disc rugosely punctate and with three feeble longitudinal carinae, the grooves between them wide and rather deep; base truncate, the transverse ridge about one-fifth in front of base, more or less sinuous, forming an obtuse angle at middle and bent obliquely forward on the sides. Elytra at base subtruncate nearly one-half wider than thorax, striae punctate. Length, 6.8 to 10 mm.