226 GEO. H. HORN, M. D. 



Tliis species is the largest in our fauna, and may be known by the 

 form of the tip of the elytra, and by the arrangement of tlie striae 

 in pairs. 



Occurs in the lower Coast Range of California, and also in Arizona. 

 (Cab. Ulke 9 ). 



C. morosa, Lee. — Pieeous, form moderately slender, sparsely pubescent. 

 Head moderately densely punctate, eyes moderately prominent. Antennae 

 nearly half the length of body, pale brown. Thorax one-third longer than 

 wide, feebly constricted in front of middle, slightly compressed j)osteriorly, 

 base slightly narrower than the apex with a feeble antescutellar impression, 

 disc moderately densely punctate. Scutellum transverse, tip broadly emar- 

 ginate. Elytra nearly twice as wide as base of thorax, humeri distinct, sides 

 nearly parallel, apices conjointly rounded, disc with rows of moderately coarse 

 punctures extending two-thirds to apex (the outer rows longer), and gradually 

 becoming feebler, an indistinct transverse fascia very slightly in front of 

 middle. Body beneath and legs brownish, very sparsely punctulate. Length 

 .48 inch ; 12 mm. 



Male. — Fifth ventral very deeply emarginate, sixth elongate parallel, angles 

 rounded prolonged in a point which is strongly incurved, the angles with a 

 carina which extends two-thirds the length of the segment, tip broadly emar- 

 ginate. Last dorsal elongate, narrower than the ventral, slightly narrowing to 

 the tip which is triangularly notched, the angles being acute. Penultimate 

 dorsal broadly emarginate. (PI. I, fig. 10). 



Female. — Unknown. 



One specimen from Northern Sonora. 



I do not find the specimen quite as long as the measurement origi- 

 nally given, (.53 inch). Resembles inurnata, but less slender and 

 easily known by sexual differences. 



C Doirr:ijX<'i« n. sp. — Very closely resembling morofsa with the followinij 

 difl'erences: Thorax moderately punctured anterior>y, very feebly punctured 

 at posterior three-fourths, antescutellar impression rather strong. Scutellum 

 transversely oval. Strife coarser and with more deeply impressed punctures, 

 fascia sliglitly behind the middle and with irregular margins. Abdomen with 

 rather coarse punctures sparsely placed. Length .48 inch ; 12 mm. 



Male. — Fifth ventral deeply emarginate, last ventral nearly square, slightly 

 broader to tip which is deej)ly emarginate, angles prolonged, not incurved 

 and with a carina extending two thirds to base. Last dorsal elongate oval, 

 acutely notched at tip, angles rounded. Penultimate dorsal emarginate. (PI. 

 I, Hg. U). 



Female. — Fifth ventral feebly emarginate, sixth short, semicircular, notched 

 at tij). Last dorsal narrower, slightly longer and acutely notched at tip. 



This species differs from moroxn in the sexual characters of tlie male, 

 and the more feeble characters of sculpture a.s noted above. 

 Collected by Mr. (\. W. Bclfrage, in Waco County, Texas. 

 The three species which follow do not admit of their characters 



