Overall color black with light brownish markings. Head: two deep sulci; frons slightly projecting. Antennae: segment I globular; II transverse; III elongate, subequal to I and II combined; IV-VII transverse, decreasing in length; VIII the longest, subequal to V-VII combined, truncate at apex. Pronotum: side margins slightly sinuate; trapezoidal; anterior angles with tooth; posterior angles acute; basal impression present; covered with large punctures; longitudinal vitta on each side of disc; medial longitudinal sulcus more or less developed. Scutellum: black; quadrate; alutaceous. Elytra: side margins strongly dentate; apices strongly dentate, cojointly rounded; lamina in apical angles; 8 rows of punctures; tricostate; costa 1 strongly elevated just behind humeri into a triangular projection; costa 2 slightly sinuate, slightly raised around midline; humeri projecting. Venter: black; prosternum punctate in middle; meso- and metasterna smooth; abdominal sterna depressed at sides, alutaceous. Legs: light reddish-brown; femora punctate. Total length: 6.0-7.0 mm.