314 



REVISION OF THE TENEKRIONIILE OF AMERICA, 



E. oaudifera, Lee-., Proc. Acad. 1818, p. 184. 



Differs from the preceding as follows: Males with the apex of elytra prolonged or 

 caudate; anterior femora armed with an obtuse tooth in the males, mutic in females. 



Occurs with the preceding. 



Length .70-90 inch, exclusive of elytral prolongation. 



E. acutioauda, Lee, Ann. Lye. 5, l!i5; laticollia, Lee, ib. 



In this species the thorax is at least one-half broader than long, sides very strongly 

 rounded, base strongly constricted ; anterior angles very acute, prominent and dentiform. 

 The elytra are elongate and strongly produced in the male, not suddenly caudate. The 

 sculpture consists of stria? of fine punctures. The anterior femora of both sexes are acutely 

 toothed, tooth rather small. 



Occurs only in extreme southern California. The synonym belongs to a larger and 

 narrower form. 



Length .90-1.30 inch. 



B, dentipes, Esch., Zool. Atl. 8, 10, pi, 1.4, ig. 4; Maim. Beitrag. 2(17; Guerin. Mag. Zool. 4, 81, pi. 117. 



The thorax is much less broad than acuticauda, the sides less rounded and the an- 

 terior angles less prominent, and the elytra are never as produced. Both sexes have the 

 anterior femora armed, though the tooth is less prominent and broader than in the prece- 

 ding species. 



The most abundant species in California south of the latitude of San Francisco, and 

 very variable both in sculpture and general form. 



Length .62-1.05 inch. 



Section 13. 



E. granosa, Lee., New Species, p. 110. 



The elytral sculpture of this species is peculiar and without any parallel in the genus. 

 One specimen in the cabinet of Dr. Lecontc, from California, another in my own, from 

 Nevada, collected by Mr. Wm. M. Gabb. 

 Length .65— .75 inch. 



E. pil os a., n. si>., black obaque. Head coarsely and densely punctured, sparsely clothed with short, black, 

 sub-erect hairs. Thorax sub-quadrate, feebly narrowed behind, sides moderately rounded, margin hardly evident; 

 apex and base truncate, angles not prominent; above very coarsely and conlluenrly punctured with erect black hairs. 

 Elytra oral, moderately convex, humeri indistinct, surface faintly sub-striate with densely and irregularly placed mu- 

 ricato punctures, each bearing a rather long Mack hair. Beneath muricately punctured and seb.se, abdomen more 

 shilling, less densely punctured. Femora mutic in both sexes. 



Occurs abundantly in Owens' Valley, California, and in western Nevada (Gabb). 

 Length .46-.60 inch. 



