Elongate; yellowish with blackish markings; antennae and scutellum black; pronotum with medial and lateral vittae; elytra dilated toward apex, with short submarginal vitta. Head: finely punctate; produced between eyes. Pronotum: longer than wide; side margins straight and parallel behind, angled in middle, narrowed and sinuate in front; anterior angles produced, subacute; apical margin slightly produced, obsoletely angled in middle; coarsely punctate; with black central vitta and side margins. Scutellum: black; smooth. Elytra: subparallel, slightly sinuate; apices rounded; posterior angles dilated, gradually increasing from base to apex, armed with flattened, acute spine; sutural angles emarginate, irregularly serrate; flattened along suture; humeri prominent, rounded in front, produced with short subacute tooth; deeply, regularly punctate-striate; each elytron with strong costa from base to near apex; black submarginal band. Venter: black except base and sides of abdomen and pro-, meso-, and metasterna which are yellowish. Legs: base of femora yellowish; slender; elongate. Total length: 10.5 mm.