294 REVISION OF Tin: TENEBRIONIDiE OF AMERICA, 



rosns, roi rt, convex, black, moderately Bhining. Thorax scarcely punctured, except neai the mar- 



Liu: margin slight!} thickened; elytra with irregular Bhallon fovea, interstices elevated, convex, smooth; iuflexed 

 portion of elytra coarselj punctured. Length .71, breadth . 1 1 inch. 



Our Largest and one of our most distinct species, by the peculiar sculpture of the 

 elytra. This sculpture app tars to result from an irregular coarse puncturing in series, 

 the interstices between the series and the punctures being elevated, rounded and smooth. 

 The elytra, therefore, have a somewhat coarsely eroded appearance. 



Collected b) Mr. Win. M. Gabb, with the preceding species. 



E. Ire vis, Lee, New Species, p. 113. 



From Cape St. Lucas, Lower California. In my cabinet arc specimens collected by 



Mr. Gabb in the same region, differing from the typical forms in the same manner that 

 the Arizona sp icimens of reticulatus differ from those of Colorado, that is by being oboval 

 and with the elytra more convex and inflated. With this degree of variation demon- 

 strated by a full series of our species, 1 am unwilling to separate a similar variation in 

 another as distinct, even though not possessing the intermediate forms. 

 Length ,52-.64 inch. 



E. difficilis, Lee, Ann. Lye. 5 133. E. convexus, Lee, id. 



I have in my cabinet a verj good series of this species, sufficient indeed to render the 

 feeble characters separating difficilis and convexus evanescent. 1 have others again 

 scarce!) Less smooth than nitidipennis, Lee, from Jalapa, Mexico. It seems probable 

 that some further collections in regions between Arizona and Chihuahua would afford 

 specimens warranting the union of this species also. This species is not rare from San 

 Diego to Owens' Valley, and from Arizona to New Mexico and Colorado. 



Length .35— .45 inch. 



E. muricatus, Lee, Ann. Lye \\. 132. 



from Oregon. New Mexico, and Owens' Valley, Cal. 

 Length .45 inch. 



E. dilatatus, Lit., Ann. Lye V.. 182. 



from the deserts of the Colorado River. I am unable to see any difference between 

 species and the preceding, except in the very dense fine punctulation of the epipleura?. 

 Length .30 inch. 



E. puberulus, Lee, Proe Acad, 7. s-i. Texas. 



Differs from muricatus by the sparse scale-like hairs of the elytra. 

 Length .30 inch. 



E. dubius, Lee, Ann. Lye Y.. 132. 



t ompinus dubius, Lee, Class. Col. N. A.. 223. 



From the deserts of the Colorado and (iila. 



Length .30 inch. 



