296 



REVISION OF THE TENEBRIONIDvE OF AMERICA, 



Thoracic and elytral punctures with a short 



scale-like hair. 

 Depressed smaller species. 



Elytral punctures with a distinct hair. 

 " " short scale. 



Rounded oval, sides rounded, never parallel. 



Thorax and elytra dissimilarly punctured, elytra rugose. 

 Thorax and elytra similarly punctured, elytra smooth. 

 Eyes divided, species broadly oval. 



a ffi n i s . 



s u b p u b e s c e n s . 

 nemoralis. 



v a 1 i s . 



1 a t a . 



o b e s a . 



('. abdominalis, Leo., Proo. Acad. 18."i0, p. 77. 



Not very common at Fort Tejon, Cal. May be readily known by the peculiar punc- 

 tation of the abdomen. It is our largest species. 

 Length .66 inch. 



C. robiis ta, elongate oval, convex, sides parallel; obtuse before and behind. Length .G2 inch. 



From Fort Tejon, southward, and one from San Francisco. 



The above rather indefinite description is really all that can be said directly of this 

 species. I have in my cabinet a long series, the sculpture and punctation varying to an 

 extent rendering it impossible to fix even a standard. Specimen 1 is sub-opaque, thorax 

 and elytra very densely and rather coarsely aciculately punctured, the elytra are obscurely 

 tricostatc, with the interstices obsoletely reticulate. From this point the sculpture be- 

 comes gradually less defined, and finally the species becomes as smooth and shining as 

 any specimens of viatica. As compared with viatica, it is more robust and obtuse. The 

 legs are also stouter and the tarsal joints less slender. Notwithstanding the rather coarse 

 punctation of the elytra, the sculpture is very different from that seen in the next group, 

 where the spaces between the punctures are notably elevated and rounded. The larger 

 proportion of the specimens of robitMa are entirely smooth. The width of the species 

 between the humeri is equal to half the length. 



C. opaca, elongate oval, black, sub-opaque, sides sub-parallel, head finely punctured, thorax finely and 

 rather densely punctured, interspaces very finely alutacoous, sides rounded, gradually narrowing from tbc bind angles* 

 elytra finely but less densely punctured; less frequently ferruginous brown. Lcngtb J30-.42 inch. 



Not rare in Owens' Valley and at Fort Tejon, California. 



Similar in form to the preceding, but much smaller. The legs and tarsi are more 

 slender and resemble those of viatica and puncticollls. Very distinct from any of our spe- 

 cies, though hardly separable from the preceding by description. 



C. viatica, Escb., Zool. Atl. 3, 7, tab. 14, fig. 3. 



Rather elongate in form, being at least two-and-a-half times as long as broad between 

 the humeri. The sides of the elytra are frequently convergent toward the apex. In this 



