Rhomboidal, narrow, black, the antennal club ferruginous; somewhat thickly clothed adpressed, those on the elytra arranged in a single line down each interstice, 2 and 3 with two lines on the basal half; the under surface set with larger white scales, the prosternum densely squamose in the ♂. Head squamose and densely punctate; rostrum strongly arcuate, very stout, short, in the ♂ scarcely so long as the head and prothorax and densely punctate and squamous to the tip, in the ♀ with the apical half bare and somewhat flattened, the antennae inserted at (♀) or beyond (♂) the middle, the club ovate. Prothorax transverse, conical, densely, confluently punctate. Seutellum sparsely squamose. Elytra subtriangular, finely punctate-striate, the interstices closely punctulate. Beneath densely punctate. Prosternum excavate down the middle from the transverse subapical groove, the excavation limited on each side by an oblique ridge to as far as the anterior coxae. Legs short; femora more or less sulcate beneath.

Length: 2-2(1/8)mm; Breadth: 1-1(1/10)mm. (♂, ♀)

Hab. Mexico, Ventanas in Durango (Hoge); Guatemala, Capetillo (Champion); Nicaragua, Managua (Solari)

Five specimens, three of which are from Guatemala. The vestiture of this insect is coarser, whiter, and more uniform than that in C. conspersus (Lec), examples of which have been communicated by Capt. Casey and Mr. Wickham.