NOKTH OF MEXICO. 



309 



sculpture consisting of punctures sometimes fine, at others rather coarse, rather densely 

 but irregularly placed and never mnricate, never arranged in rows. The femora are 

 mutic in both sexes. The thorax is also narrower at base than in the two preceding spe- 

 cies. The elytra of the female are always broadly oval, those of the male elongate, 

 scarcely broader than the thorax. 



Occurs in California, from San Francisco to San Diego on the coast, and inland from 

 San Jose to Tejon. Specimens have been sent from Sonora. 



Length .60-.80 inch. 



E. humeralis, Lee, Paolf. R. R. Surv. 47 parallel, App. 1, p, 50. 



Differs from the preceding in the rather deeper emargination of the base of the elytra, 

 and by the humeral angles a little more prominent. The elytra are always opaque to a 

 greater or less extent, and very densely muricately punctured or almost granulate. The 

 femora are mutic. 



Occurs in northern California, and Oregon, where it replaces quadricollis of the south- 

 ern regions. 



Length .54-68 inch. 



E. granulata, Lee, f; eUum, Lee, Proo. Acad. 1861, p. 85S, %; aspera, Lee, Now Species, 115; fsubaapera, 

 Sol., Btud. But. 240. 



From all the other species this may be readily distinguished by the elytral sculpture, 

 consisting of rows of moderately elevated, rather smooth tubercles with opaque interspaces. 

 Its form is similar to the male of quadricollis. I have placed it in association with extri- 

 cata, a species with armed anterior femora, although its femora are scarcely toothed, but 

 strongly sinuate near the tip. The other preceding species have the femora of both sexes 

 entirely without either a tooth or the suspicion of a sinuation. The specimens in our col- 

 lections appear to he rather poorly developed, and from what occurs in other species it is 

 inferable that fully developed forms may have a very distinct tooth in the males. T have 

 united aspera as a synonym, although the specimen is not before me. I believe it to be 

 merely a more roughly sculptured form, bearing the same relation to granulata that aspe~, 

 rata does to pedinoides. 



Occurs as follows; granulata,, Oregon; obtusa, California; aspera,, New Mexico. 



The throe specimens scarcely vary from .60 inch. The last synonym is placed here 

 doubtfully. Should it prove to be identical with granulata,, this name must be suppressed 

 and the name of Solier used instead. 



E. extrioata, Say, (Blaps) Journ. Acad. ;i, 261. Lee (Eleodes); co/jnata, Ilald., Stansb. Rep., App. C, p. 376. 



Readily distinguished from all others of the sub-section by the very evident tooth of 



the anterior femur of the male, as well as by the rather more slender form of that sex. 



AMERT. PIITLOSO. SOC. VOL. XIV. 78 



