78 HETEROMERA. 
Hab. Mzxtco! (coll. F. Bates), Guanajuato (coll. Sallé); San Pedro in Coahuila, 
Hacienda de Bleados, San Luis Potosi (Dr. Palmer). 
The ten specimens I refer to this species differ from others I refer to #. blaptoides, 
Eschsch., in having the thorax less rounded at the sides, less constricted at the base, 
and less transverse. The males somewhat elongate; the elytra broader at the base and 
more attenuate at the apex than in the female. The anterior femora in the male with 
a strong curved tooth, in the female sinuate near the apex; the elytra obsoletely or 
distinctly punctate-striate and subcaudate in both sexes. The examples from San Luis 
Potosi are more shining, the striz more deeply impressed, and the interstices in some 
specimens slightly convex, and each with a row of punctures. 
Named £. eschscholtzi, Sol., in the Sallé collection; the elytra in the male, however, 
are not strongly caudate as in that species. 
4. Eleodes ventricosa. 
Eleodes ventricosa, Lec. Proc. Acad. Phil. 1858, p. 186°; Horn, Rev. Ten. N. A. p. 811. 
Hab. Norta America, near the Rio Grande in Texas !.—Mexico (coll. F. Bates). 
5. Eleodes blaptoides. 
Eleodes blapoides, Kischsch. Zool. Atlas, iii. p. 12*; Dej. Cat. 3rd ed. p. 209. 
Hab. Mexico! (coll. F. Bates), Yolos (Sailé). 
I refer, somewhat doubtfully, three female examples to this species. These specimens — 
have the anterior femora on the inner side strongly sinuate near the apex, thus forming 
a short blunt tooth; the thorax transverse, convex, strongly rounded at the sides, 
somewhat constricted at the base, the anterior angles somewhat acute and projecting 
forwards (the anterior margin appearing deeply emarginate), the base subtruncate and 
indistinctly margined within; the elytra subcaudate at the apex, obsoletely or distinctly 
punctate-striate, the interstices flat, with rows of finer muricate punctures. 
6. Elzodes exarata. (Tab. IV. fig. 3, 2.) 
Obovate, black, subopaque. Head with scattered fine punctures; prothorax transverse, moderately convex, 
widest in the middle, about equally narrowed at the base and apex, the anterior angles prominent and 
divergent though not acute, hind angles subrectangular, almost imperceptibly punctate, the base nearly 
straight ; elytra rather convex, somewhat ventricose, rounded at the sides, broadest beyond the middle, 
the apices feebly caudate, deeply sulcate, the strive with fine muricate punctures, the interstices with fine 
scattered punctures and slightly shining, the base slightly raised and the humeri distinct. Beneath 
shining; the prosternum strongly declivous behind, the apex produced into a short blunt tooth; the 
anterior femora emarginate near the apex ; the spurs of the anterior tibie subequal; anterior tarsi some- 
what densely clothed with hairs beneath. 
Length 19-20 millim. (9?.) 
Hab. Mexico, Hacienda de Bleados, San Luis Potosi (Dr. Palmer). 
Two female examples. I know of no near ally to this species. 
