NORTH OF MEXICO. 



307 



reflexed. The thorax is broaden-, sides more strongly rounded, apex deeply emarginate 

 with acute angles, base trisinuate also with acute angles. The elytra are also more 

 acutely margined than auturalia, the dorsum slightly concave, longer and more parallel 

 and in the males slightly produced, their surface is also feebly sulcatc with stria? of coarse, 

 closely placed punctures. The anterior femora, of the male are armed Avith a rather small 

 acute tooth. 



This species has thus far occurred in Texas alone. Length 1.25-1.50 inch. 



Section IT. of Group I. contains all those species of the sub-genus Eleodes in which 

 the anterior spur of the anterior tibia is notably longer, broader, thicker and more strongly 

 curved than the posterior spur, in the females. 



E. pedinoides, Leo., Proo. Acad, 1858, p. 188. asperata, Leo., (loo. cit.) 



The peculiar form of the elytra distinguishes this and the next from the others of the 

 section which follow. The sides are sub-parallel, very feebly rounded and scarcely nar- 

 rower (frequently broader) at base than at any other portion. The base is also truncate 

 and the angles rectangular, extending under the basal angles of the thorax. In both 

 species the middle lobe of the mentum is smaller, rather more acute and more prominent 

 in front than the species in the preceding section. The form of the thorax of E. pedi- 

 noides is similar to that of acuta. The anterior angles are not acute and the posterior are 

 rectangular. The base feebly emarginate and with an impression near each hind angle. 

 The sides are rounded anteriorly, slightly sinuate posteriorly. The elytra are oval, not 

 narrowed at base, black, glabrous, and never pubescent, feebly sulcatc with moderately 

 convex interstices. The striee are rather coarsely punctured in some specimens, less evi- 

 dently in others. In the variety asperata the punctures become slightly muricate at the 

 sides near the apex. The elytra are also moderately convex, margin rounded, the humeri 

 are occasionally slightly carinate. The femora are mutic in both sexes. 



Occurs in southwestern Texas. Length .75-.9S inch. 



E. tricostata, Say, (Blaps) ,Tom-n. Acad. 3, 202; Leo. (Eleodes); alUrnala, ICivby, (Pimelia) N. Z., 232; plan- 

 ata J Sol., (Eleodes) Baudi e Truqui, p. 200, (indicated by error as from Spain); rolmsltt, Lee, Proe. Aoad., 1858, 

 p. 181!. 



Similar in form to pedinoides, differing in the following characters: Elytra usually 

 flattened, margin more acute, alternate interspaces more elevated, the shallow sulci are 

 rather strongly muricately punctured, each puncture with a short robust hair in recent 

 specimens. The elytra are never shining as in pedinoides, and the peculiar sub-tricosta- 

 tion will readily distinguish it. The variety robusta, as the name indicates, is larger, 

 stouter and rather more coarsely muricate. 



The species is abundant on the plains of Kansas and Nebraska and southward into 

 Texas. Length .50-.90 inch. 



