370 Goleopterological Notices, VII. 



which extends to the basal margin ; fovese large and deep ; pubescence want- 

 ing along the median line, the hairs bordering which are longer and directed 

 backward and upward toward base. Elytra scarcely % longer than wide, 

 fully twice as long as the prothorax but only % wider, strongly rounded at the 

 sides, widest only slightly before the middle ; humeral plica and impression 

 small and inconspicuous, the fovese deep ; subsutural impressions entirely 

 obsolete, the suture finely and strongly beaded basally, the bead rapidly ex- 

 panded at the base. Legs moderate ; four anterior femora strongly, the two 

 posterior moderately clavate. Length 1.25 mm.; width 0.5 mm. 



Wyoming. 



This species is closely allied to semiruher, but differs in its 

 Shorter and more strongly clavate antennae, rather broader pro- 

 thorax, much smaller and less conspicuous humeral plica and im- 

 pression, more abruptly and basally expanded sutural bead and 

 other structural characters. It is represented before me by a 

 single male. 



The secondary sexual characters are nearly similar to those of 

 semiruher, the minute teeth of the third ventral being fully as 

 approximate, but the suberect comb of pale spicules of the fourth 

 segment is still shorter in a transverse sense, though composed of 

 slightly longer spicules, these being planted along the apex of a 

 short projection which is emarginate in circular arc throughout its 

 width ; in semiruber the base of the comb is the straight and un- 

 modified edge of the segment, the only trace of the emarginate 

 projection being the minute teeth which limit it laterally. 



5. E. "bicolor Lee. — Proc. Acad. Nat. Sci., Phila., 1852, p. 154 ; lecontei 

 Schauf. (Scydmsenus. ) 



Rather narrow and feebly ventricose, polished and impunctate, 

 black, the elytra somewhat rufo-piceous ; legs and antennae 

 throughout pale testaceous ; pubescence sparse on the head, very 

 sparse but rather long and erect on the elytra, dense and stiff on 

 the pronotal flanks. Head orbicular, as long as wide, the eye* 

 moderate, anterior and not prominent ; contour behind them 

 semicircular; clj'^peus smooth, rectilinear at apex, separated from- 

 the front by the transverse sulcus between the antennal cavities 

 characterizing this group. Antennae rather stout, slightly more 

 than ^ as long as the body, the club well differentiated and percep- 

 tibly incrassate ; second joint almost as large as the first but ob- 

 conic, ^ longer than wide, much shorter than the next two and 

 but slightly thicker ; thi-ee to six equal in width, oval, subcon- 

 stricted at base; third ^, fourth -l-, fifth f , sixth ^ longer than wide; 



