Blackish brown, densely clothed with brownish gray scales, head and middle of prothorax darker; the latter with a few white hairs near the base. Elytra with a large, dark spot extending from the base to the middle, and from the suture to the third stria; this spot is emarginate on the sides, and rounded behind; at one-fourth from the tip is a transverse undulated dark line extending from the fourth stria to the suture; the space between this line and the spot is clothed with nearly white scales; the striae are obscured by the dense covering of scales. Scutellum covered with pale scales. Antennae nearly black.

Length 2.0 mm.; 0.08 inch.

California: two specimens collected at San Diego, by Mr. Crotch. This is a very pretty and easily recognized insect.