Oblong, convex, shining black. Head convex without trace of tubercles, closely punctate; clypeus feebly emarginate, the angles broadly rounded, genae moderately prominent, antennae black. Pronotum one and one-half times as wide as long, side margins not explanate, hind angles distinct but obtuse, base feebly arcuate, basal marginal line entire and distinct, disk evenly convex, puncturation rather coarse and dense less so on vertex. Scutellum small.