AMERICAN COLEOPTERA. 225 



Male. — Fifth ventral arcuate, sixth short, semicircular and truncate at tip, 

 last dorsal longer, angles obtuse, with an acute but feeble emargination at tip. 

 (PI. I, (!?• 7). 



Female.— li&si vsntral nearly semicircular, last dorsal longer and rounded 

 at tip. 



Occurs from Canada to Georgia, and Missouri. 



C. fascifera, Lee. — Form slender, color pale piceous, elytra with median 

 yellow fascia, surface sparsely pubescent. Head rather densely and coarsely 

 punctured, eyes feebly convex. Antennje ferruginous, not longer than head 

 and thorax. Thorax one-third longer than wide, base slightly narrower than 

 apex, very feebly constricted in front of middle, moderately compressed pos- 

 teriorly, surface sparsely punctured and rugulose, a feeble ante-scutellar im- 

 pression. Scutellum rounded, emarginate at tip and slightly concave. Elytra 

 twice as long as thorax and nearly twice as wide at base, humeri distinct, sides 

 nearly parallel, apices conjointly rounded, surface with strise of moderate punc- 

 tures extending beyond the middle, becoming very small and confused at apical 

 fourth; color pale piceous, with median yellow band, arcuate posteriorly and 

 dentate in front, humeri testaceous with the callus piceous. Body beneath and 

 legs testaceous, sparsely and finely punctulate. Elytra paler than head and 

 thorax. Length ..32 inch; 8 mm. 



il/a/e.— Fifth ventral arcuate posteriorly, sixth semicircular, slightly im- 

 pressed at tip, last dorsal longer, broadly rounded at tip, middle of apical 

 margin prolonged. (PL I, fig. 8). 



Female. — Unknown. 



Greatly resembles pvncfafa, and can scarcely be distinguished ex- 

 cept by the sexual characters. 



One % from Cape San Lucas, Lower California. 



C eaiiforuica, Horn. — Brownish piceous, moderately shining, sparsely 

 pubescent, elytra with indistinct median pale fascia. Head moderately densely 

 punctulate, eyes moderately prominent. Antennse ferruginous, slightly longer 

 than head and thorax. Thorax cylindrical, very feebly constricted in front of 

 middle and slightly compressed behind, no ante-scutellar impression, disc not 

 densely punctulate. Scutellum slightly transverse, longitudinally concave and 

 smooth at middle, tip feebly emarginate. Elytra less wide than double the 

 base of thorax, humeri distinct, sides slightly arcuate and slightly diverging 

 posteriorly, tip rather strongly sinuate, sutural angle prolonged -£ , tip rounded 

 9, disc slightly flattened and with strise, in pairs, of small punctures which 

 gradually become feebler toward the tip, intervals alternately broader and 

 with one or two rows of finer punctures. Body beneath and legs ferruginous 

 or brownish, very sparsely and finely punctured. Length, Male .76 inch; 

 19 mm. Female .84 inch ; 21 mm. 



il/«/e.— Sixth ventral semicircular, truncate at tip and slightly emarginate, 

 last dorsal longer, slightly broader at tip, the sides elevated in an obtuse carina 

 with the angles reflexed, at middle an obtuse carina not attaining the apex, 

 terminating abruptly. (PI. I, fig. 9). 



J'ema/e.— Sixth ventral semicircular, apex rounded. Last dorsal similar to 

 male with the median carina prolonged tn point at tip. 



TRANS. AMER. ENT. SOC. V. (29) DECEMBER, 1876. 



