Coleopferological Notices. 401 



Arizona (exact locality unknown). Mr. G. W. Dunn. 



The two examples before me are almost perfectly similar in every 

 respect, but the peculiar coloration may nevertheless be due to im- 

 maturity. 



This species is totally distinct in general habitus from any other 

 which is known to inhabit the Ignited States,, and is not described 

 in the Biolog'ia Centrali-Americana ; although far removed from 

 gracilis, it may be placed near it for the present. 



E. prominens n. sp. — Form somewhat as in dentipes, convex, smooth 

 and alutaceous throughout. Head moderate, finely, sparsely punctate, more 

 densely so toward the sides of the epistoma ; antennae short and very robust, 

 much shorter than the head and prothorax, third joint about twice as long as 

 wide and equal in length to the next two. Prothorax about one-sixth wider 

 than long; apex and base subequal, the former broadly arcuate, sinuate later- 

 ally, the apical angles being acute, very prominent anteriorly and distinctly 

 everted ; base broadly, evenly, very feebly arcuate ; sides broadly arcuate 

 anteriorly, rather strongly convergent in basal half and strongly sinuate near 

 the basal angles, which are acute and prominent ; disk rather strongly convex 

 throughout, finely and sparsely punctate, strongly alutaceous, the side mar- 

 gins very minutely beaded. Scutellum strongly transverse, broadly rounded 

 behind, highly polished and impunctate. Elytra at base broadly, feebly 

 emarginate and about as wide as the contiguous base of the prothorax, gradu- 

 ally narrowed and acute at apex ; sides evenly arcuate ; humeri obtuse but 

 not rounded, not prominent ; disk widest at the jaiddle, where it is rather 

 more than one-third wider than the prothorax, feebly alutaceous, finely, 

 sparsely punctate, the punctures nearly simple, arranged in widely distant, 

 rather feebly defined, unimpressed rows, the intervals with a few widely dis- 

 tant and nearly similar punctures. Legs rather short and slender, the anterior 

 femora with a short obtuse tooth near outer third ; middle and hind femora 

 simple ; spurs of anterior tibise moderate in length, slender, similar and very 

 nearly equal. Length 19.0 mm. ; width 7.8 mm. 



California (San Luis Obispo Co.). 



I obtained a single specimen of this very distinct form at Port 

 Harford. It belongs near dentipes but is more robust, the elytra 

 being shorter, the prothorax is, however, much narrower, the sides 

 being convergent and nearly straight from the middle. One of the 

 chief differences lies in the antennal structure, the third joint being 

 very much shorter ; in dentipes the antenna are very nearly as long 

 as the entire head and prothorax and are much more slender. 



E. elegans n. sp. — Moderately robust, strongly convex, strongly alutace- 

 ous, the elytra moderately shining ; integuments nearly smooth. Head mode- 

 rate, somewhat finely, sparsely punctate ; antennae rather short but slender, 



