Elongate; elytra black; pronotum reddish. Head: vertex smooth; front trisulcate, strongly produced between eyes; clypeus large, pentangular, with two oblique apical foveae. Antennae: 1/2 body length; filiform; segments cylindrical. Pronotum: side margins trisinuate; basal margin depressed on each side; anterior angles with short obtuse tooth; punctures faint, little impressed. Elytra: black; subelongate; parallel-sided, slightly constricted in middle, irregularly serrulate, serrulations increasing in size toward apex; apices rounded, with strong teeth; interspaces 2 and 8 costate, base and apex of 4 and 6 costate. Total length: 8.4 mm.