312 REVISION OF Till: TENEBRIONIDJE OF AMERICA, 



I 1 n cse, Lee, New Species, p. 1 1 I. 



The species is more elongate than the preceding, and \<t\ feebly ventricose in Ihe fe- 

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

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

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



Abundant near Cape 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. 



\- in luece, the anterior (emora of both sexes are armed with an acute tooth. It dif- 

 fers by it- more elongate form, the dentiform anterior angles of the thorax, as well as b) 

 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-.94 inch. 



I'., i n nor r n s. Lec, Ni » Species, p. ill. 



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

 as in /mil. The thorax is slightly longer than broad, with feebly rounded sides and trim- 

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



From Cape St. Lucas. 



Length .54 inch. 



The following -prcies have the thorax rounded on the sides and with the sides more 

 strongly convergent at base, frequently rather suddenly constricted. 



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

 of elytra wanting. In both the elytra an 1 smooth or faintly punctured, never striate or 

 silicate. 



E. grandicollis, Mann., Beitrag. \>. 266; Mag. Zool. istt. pi. 130. valida, Boheman, Eugen. Resa. Ins. p. 90. 



The elytra are rather broadly oval in outline. The anterior femora are toothed in 

 both sexes. Dr. Leconte 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. 267; Mag. ZooL 1848, 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 hay. 

 Length 1.10-1.40 inch. 



