227 



C. mexicanus, Walk., Cat. Dermap. Salt., IV, 682. 



Male. — Greenish, slender, yellow beneath. Head smooth, slightly elon- 

 gated ; verte.x with two curved, brown lines, which are approximate in front ; 

 tip flat, fusiform ; front slightly oblique, with four slight keels ; inner keels 

 nearly parallel ; outer keels diverging toward the face ; an oblique, brown 

 ^ streak between each eye and the face. Eyes testaceous, straight in front, 



very much rounded on the hind side. Antennae piceous, tawny at the base. 

 Pronotum very finely scabrous, partly brown ; disk flat, with three distinct 

 keels ; transverse-impressed lines very slight ; fore border, sides, and hind 

 border slightly rounded. Prosternal spine stout, conical, moderately long, 

 about twice as broad as thick. Legs ferruginous, yellowish beneath ; hind 

 femora as long as the abdomen ; hind tiliite much shorter than the hind 

 femora, their spines with black tips. 



Length of body, 0.75 inch. 



Orizaba, Mexico (Walker). 



Remark (Walker). — Wings of the specimen described are rudimentary, 

 it not being fully developed. 



C. borealis, Fieb., Verhandl. zool.-bot. Vereins Wien, XI, 1861, 22.3. 



Female. — Olivaceous-red ; a black vitta running from the eyes to the 

 third transverse sulcus of the pronotum. Pronotum has the posterior ex- 

 tremity somewhat produced and angulate, convex in front of the third sulcus; 

 lateral carinee conspicuous on the posterior portion. Elytra and wings fus- 

 cous, a little shorter than the abdomen. Posterior femora yellow internally, 

 marked with two black -vittse; laminse of the knees black; lower channel 

 red ; base and apex yellow. Tibise red. 



Length of body, 0.97 inch; elytra, 0.67 inch; pronotum, 0.20 inch; 

 posterior femora, 0.52 inch. 



Labrador (Fieber). 



CAL.ACRIS, Walker. 



Body slender, nearly cylindrical. Head and prothorax with a slight keel. 

 Head smooth ; tip of the vertex depressed, widening toward the antennfe ; 

 space between the eyes narrow ; front with four distinct keels nearly parallel, 

 slightly approximating in the middle; outer keels slightly diverging toward 

 the face. Eyes elliptical, rather prominent. Antennae filiform, long, slender. 



