Col copter ological Notices, III. 5*7 



Colorado. 



The under surface is clothed very sparsely with short yellowish 

 hairs. One specimen. 



I take pleasure in dedicating this species, perhaps the most inter- 

 esting- of the novelties contained in the Levette cabinet, to Mr. F. 

 M. Webster, in partial recognition of many favors rendered by him 

 in connection with the transfer of the cabinet mentioned. 



ELEODES Escli. 



The following species, represented by a series of eleven specimens 

 from the Levette cabinet, is not closely allied to any other, but may 

 be placed for the present near humeralis : — 



E. rileyi n. sp. — Rather robust and convex, somewhat strongly shining, 

 intense black throughout. Head coarsely, rather closely punctate ; antennae 

 subequal in length to the head and prothorax, the third joint thi'ee times as 

 long as wide and rather longer than the next two combined, the outer joints 

 but moderately robust. Prothorax from one-fourth to three-fifths wider than 

 long, the apex broadly, feebly emarginate, distinctly narrower than the base, 

 the latter transverse, generally very broadly, feebly sinuate toward the middle ; 

 apical angles obtuse but not at all rounded, basal slightly obtuse, not much 

 rounded and rather prominent ; sides strongly arcuate at apical third, thence 

 strongly convergent and nearly straight to the apex, distinctly sinuate before 

 the base ; disk rather coarsely, deeply punctate, densely so toward the sides, 

 sparsely and unevenly, with large impunctate patches toward the middle. 

 Elytra two and one-half times longer than the prothorax, and, in the middle, 

 from one-fifth to nearly one-half wider than the latter ; sides evenly arcuate ; 

 humeri narrowly rounded, slightly prominent and usually distinctly exposed ; 

 apex narrowly rounded ; disk almost vertical behind, rather coarsely, feebly 

 and subasperately punctate, sometimes with very feebly impressed distant 

 lines, the punctures rather sparse, not much denser laterally, confusedly 

 disposed but often having a feeble lineal arrangement. Prosternum not at 

 all produced. Anterior tibial spurs extremely unequal, the anterior robust, 

 long, subparallel and truncate at apex, the posterior very small, acute, the 

 larger spur still more pronounced, broader and more truncate in the female. 

 Length 12.0-15.0 mm. ; width 5.2-7.2 mm, 



Arizona. 



The anterior femora are completely unarmed in both sexes, and 

 the relative proportion in the length of the anterior tibial spurs is 

 nearly independent of sex, but both spurs are longer, and the ante- 

 rior much wider, more broadly truncate and more parallel in the 

 female than in the male. 



From humeralis the present species differs in its smaller size, 

 Annals N. Y. Acad. Sci., VI, Nov. 1891.— 5 



