NORTH OF MEXICO. 319 



E. sei iata, Lee, Proc. Ac.nl. 1858, p. 183. 



The elytra of this species are frequently inflated in the female, always verj convex 

 and without any semblance of even an obtuse margin. Their sculpture consists of distant 

 rows of large and rather distant punctures. The anterior femora of the male are armed 

 with an obtuse tooth, an 1 the two basal joints distinctly thickened and dilated. 



Occurs in New Mexico and Texas. 



Length .G(i-.8() inch. 



B. subnitens, Lee, Aim. Lye. 5, 134. 



Similar in form to seriata, but less robusl and inure fusiform. The elytral margin is 

 regularly rounded, as in the preceding species. The surface is sub-opaque and the sculp- 

 ture of distant striae of fine punctures. The male has an aeute tooth to the anterior fe- 

 mur, and the two basal joints very distinctly thickened. 



The unique specimen came from the region of Arizona traversed by the Gila River. 



Length .70 inch. 



E. striolata, Lee, Proc. Acad. 1858, p. 185. 



It is not without some misgivings that I place this species in the present sub-genus. 

 Three specimens are known to me, all females. The anterior spurs of the anterior tibiae 

 in all the species of Promus, are similar in structure to that seen in Section 15, Group I. 

 Eleodes, thus increasing the difficult} of assigning places in the genus to females when 

 the male is unknown. The anterior femora of the specimen before me are verj feebly 

 -innate, and should the male prove to have simple tarsi and a toothed femur, the spi cies 



should be placed near extricata. A.s in the two preceding species, the basis of elytra are 

 very feeblj emarginate, the angles acute, neither prolonged nor clasping the thoracic base. 

 The surface is marked with approximate striae of rather fine punctures. The apex of 

 elytra is faintly prolonged, with the tips of the elytra slightly separated. 



Occurs in southwestern Texas and adjoining regions of Mexico. 



Length .65— .77 inch. 



- 



DIS< OGENIA, Lee. 

 Discogenia, Lee, New Spec. 1 17. 



This genus differs from Eleodes by verj feeble characters, the value of which may be 

 at any time lessened by the discoverj of intermediate forms. The "mentum is quite flat, 

 not at all trilobed, but transverse, widened from the base to the middle, then rounded. 

 both at the front and sides, the lateral angles being also rounded at tip; the surface is 

 punctured and is foveate on each side near the angle." The epipleurae of the elytra, as in 

 Eleodes, are rather suddenly dilated at base and are slightly risible from above. The 

 tarsi are similar in both sexes and rather coarsely spinous beneath. The tibial spurs are 

 -imilar in the sexes and nearh equal. 



