[51] 



NORTH AMERICAN COLEOPTERA. 207 



relatively much shorter third joint of the maxillary palpi, 

 and more especially in the structure of the posterior coxoe. 

 In appearance it differs considerably, by reason of its aspe- 

 rate sculpture, in this respect being apparently related to 

 Tricophya. In the latter genus the elytra do not extend 

 beyond the metasternum, and the third and fourth joints of 

 the maxillary palpi are subequal in length. 



There is at my disposal, unfortunately, but one specimen. 

 I cannot therefore give a representation of the maxilla; the 

 labial palpi appear to be very minute and are not distinctly 

 visible in the type. From the cursory glance which I ob- 

 tained before the antennae were broken, I am confident that 

 these are filiform and verticillate throughout. 



E. tarsalis n. sp. — Form rather slender, dark castaueous; abdomen black, 

 paler at the apex; legs pale piceo-testaceous; antennae flavate, basal 

 joints piceo-testaceous; pubescence fine, denser on the elytra, recum- 

 bent, brownish, not conspicuous; integuments very feebly alutaceous, 

 shining. Head moderate, slightly wider than long, feebly and evenly 

 convex; eyes small, convex, finely granulate, rather prominent; front feebly, 

 densely and subasperately punctate; palpi testaceous; infraorbital ridge not 

 visible. Prothorax widest at two-thirds its length from the apex, where the 

 sides are obtusely subangulate and where it is nearly one-half wider than 

 long; sides thence moderately convergent aud feebly arcuate to the apex, 

 slightly less strongly convergent and nearly straight to the base; the latter 

 squarely truncate; basal angles obtuse aud ver} r slightly rounded; apex broadly 

 and feebly emarginate, distinctly narrower than the base; disk evenly aud 

 moderately convex, obliquely and feebly impressed near each basal angle, very 

 finely, rather densely and evenly punctate; punctures strongly asperate. 

 Scntellum rather large, as wide as long, asperate. Eli/traa.t base as wide as 

 the base of the pronotutn; sides feebly divergent, nearly straight toward the 

 base, feebly arcuate posteriorly; together as long as wide, broadly sinuate at 

 apex, nearly one-half longer than the pronotum; disk feebly, transversely 

 convex, finely, rather densely and evenly punctato-asperate; punctures slightly 

 coarser thau those of the pronotum. Abdomen at base very slightly narrower 

 than the elytra; sides rather strongly convergent toward apex aud nearly 

 straight; border moderate, feeble on the fifth segment; surface transversely 

 and moderately convex, even, minutely, very feebly aud rather densely punc- 

 tato-asperate at base, the punctures becoming more minute and sparse toward 

 the vertex; under surface more coarsely and strongly punctato-asperate to- 

 ward the base, sculpture subimbricate. Legs moderate, anterior short, rather 

 robust, remainder slender; posterior tarsi long, much shorter than the tibia, 



