312 



REVISION OF THE TENEBRIONID-ffi OF AMERICA, 



E. lucre, Leo., New Species, p, 114. 



The species is more elongate than the preceding, and very feebly ventricose in (lie le- 

 male. The elytra are more deeply striate and also caudate in the male. The thorax has 

 feebly rounded sides, an almost truncate 1 base, apex emarginate, angles distinct, never 

 dentiform. Both sexes have the anterior femora armed with an acute straight tooth. 



Abundant near ('ape St. Lucas, Lower California, where it replaces gracilis of Arizona 

 and the northern end of the Peninsula. 



Length .70-1.04 inch. 



E. gracilis, Lee, Proc. Acad. 1858, p. 184. 



As in lucoe, the anterior femora of both sexes are armed with an acute tooth. It dif- 

 fers by its more elongate form, the dentiform anterior angles of the thorax, as well as by 

 the thorax being narrower behind and the sides more strongly rounded. The male is 

 never caudate. 



From New Mexico, Arizona, and the upper end of the Peninsula of Lower California. 



Length .78-.04 inch. 



E. innoeens, Leo., New Species, p. 114. 



The femora of this species are feebly sinuate. The elytra are rather strongly striate, 

 as in luom. The thorax is slightly longer than broad, with feebly rounded sides and trun- 

 cate base. The apex is very feebly emarginate, the angles prominent, not dentiform. 



From Cape St. Lucas. 



Length .54 inch. 



The following species have the thorax rounded on the sides and with the sides more 

 strongly convergent at base, frequently rather suddenly constricted. 



The first two species have the thorax very convex, hind angles obtuse, humeral angles 

 of elytra wanting. In both the elytra are smooth or faintly punctured, never striate or 

 sulcate. 



E. grandieollis, Mann., Beitrag. p. 260; Mag. Zool. 1844, pi. 180. mlida, Bohoman, Eugen. Rosa. Ins. p. 90. 



Tb<- elytra, are rather broadly oval in outline. The anterior femora are toothed in 

 both sexes. Dr. Lecontc mentions the synonym in Proc. Ac. Nat. Sci. 1859, p. 290, but 

 it has been accidentally omitted in his List of Coleoptera. 



Occurs near San Francisco, Cal. 



Length 1.-1.20 inch. 



E. gigantea, Mann., Beitr., p. 207; Mag. Zool. 1843, pi. 127. 



More elongate and attenuate than the preceding. The femora are mutic in both sexes. 

 Occurs at San Francisco, and in the Sacramento Valley around the bay. 

 Length 1.10-1.40 inch. 



