"General: Body 1.7 times as long as wide; dorsal surface shining, without pubescense, most of ventral surface with short, sparse, whitish pubescence. Head: Dull orange, front with moderate-sized punctures; clypeus not sharply delimited, short, distinctly broadest apically, with fine, sparse punctures. Antennae of male about two-thirds length of body, in female about one-half length of body, first five segments dull orange, apical six segments dark brown. Pronotum: Predominantly dull orange, with vague lighter or apparently transparent areas at base, apex, and sides. Punctation dual, smaller punctures minute and rather dense, larger punctures small, not dense. Elytra: Dull creamy yellow to light orange; humerus dark brown to black; punctures dark. Each elytron with seven rows of moderate-sized, fairly even punctures and one or two punctures behind humerus, punctures rather close, smaller to apex; inner and outer rows distinct at apex, nearly meeting or meeting. Intervals not or only slightly convex. Ventral surface: Ventral surfaces and legs dull orange, metasternum (especially at side) darker than remainder. Male with anterior margin of prosternum broadly produced ventrally into a V-shaped lobe, appearing spinelike in lateral view; female with anterior margin of prosternum produced ventrally, not as broad or pointed as that of male. Fifth abdominal segment at center with a broad, deep, oval pit in female, or faintly depressed in male. Pygidium dull orange, with rather dense, moderate-sized punctures. Length: 4.4 to 5.0 mm" (White, 1968: 53).
"This species is most similar to c. cerinus, but differs in color. In dorsatus, the pronotum is dull orange and the elytra are creamy yellow to light orange; in c. cerinus, the dorsal surface is light orange throughout" (White, 1968).
USA: Alpine, TX (White, 1968).