REVISION OF ELEODITNI BLAISDELL. 41 



3. Elytra opaque, densely muricately punctate (Washington) ; frequently 



granulato-muricately (Nevada and California) or tuberculo-muricately 

 (Colorado) punctured humeralis. 



4. Elytra shining, subasparately punctate, punctures rather sparse, often with 



a feeble lineal arrangement rileiji. 



GROUP II. 



Elytra costate 1 



Elytra not in the least costate 2 



1. Elytra with alternate interspaces more elevated, at times all quite evenly 



so ; surface opaque tricostata. 



2. Elytra glabrous and shining, with regular strife of moderately lai-ge 



punctures, interstices equally and very feebly convex ; pronotum with basal 



depressions ijedinoides. 



Elytra opaque, diffusely punctate; basal depressions of pronotum obso- 

 lete var. neomexicana. 



GROUP I.— CARBONARIA SECTION. 



ELEODES DEBILIS LeConte. 



Eleodes deiilis. — LeConte, Proc. Nat. Sci. Acad. Phila., 1858, p. 18,5.^ 

 Horn, Trans. Amer. Philos. Soc, XIV, 1870, p. 308. — Casey, Annals 

 N. Y. Acad. Sci., Y, Nov., 1890, p. 390. 



Ovate, moderately robust, glabrous and shining. 



Head twice as wide as long, feebly convex, rather coarsely pnnctate, 

 punctures very sparse on the vertex, denser on the epistoma ; Hurfave 

 more or less impressed laterally and along the frontal suture. An- 

 tenruv moderate, reaching to the base of the prothorax, subequal in 

 the sexes, outer four joints ver}' feebly compressed, scarcely dilated, 

 third joint about equal to the next two taken together, fourth hardly 

 longer than the fifth, the latter, sixth and seventh subequal, eighth 

 feebly triangular, ninth and tenth snborbicular, scarceh^ transverse, 

 eleventh ovate. 



Pronotum subquadrate, widest at the middle, about one-fifth to 

 one-third wider tlian long; disc rather strongly and eveidy convex 

 from side to side, feebly so antero-posteriorly and more or less de- 

 clivous at the apical angles, finely and sparsely punctulate, rather 

 more strongly so laterally; apex feebly and evenly emarginate, usu- 

 ally obsoletely margined; sides converging a little anteriorly, rather 

 evenly and moderateh' arcuate in aj^ical two-thirds, thence to base 

 obliquely straight or feebly sinuate, finely margined; hase rather 

 broadly rounded and finely margined, about a third wider than the 

 apex ; apical angles subacute ; basal angles obtuse. 



Propleiu'se smooth, sparsely and more or less obsoletely punctulate, 

 slightly rugulose. 



Elytra oval, widest at the middle, about a third longer than wide; 

 hase broadly and very feebly emarginate, scarcely wider than the 



