482 Coleopterological Notices^ VI. 



apex of the epistonia and entire labium bright rufo-ferriiginous, the latter 

 broadly arcuate at apex; eyes only moderately large and somewhat promi- 

 nent; antennse barely longer than the prothorax, the tenth joint strongly 

 transverse. Prothorax one-half wider than long, widest at basal third, where 

 the sides are pai'allel and broadly rounded, thence becoming distinctly con- 

 vergent and very feebly arcuate to the apex ; basal angles very broadly, the 

 apical only a little less broadly, roirnded ; apex truncate and much narrower 

 than the base; punctures fine, but strong and remote, the surface perfectly 

 smooth, not at all rugose at the sides. EJytra not quite two-thirds longer than 

 wide, slightly wider than the prothorax, parallel and nearly straight at the 

 sides, the apex very broadly rounded ; flanks longitudinally impressed toward 

 base; humeri tumid; punctures impressed, sparse and coarse, finer and less 

 sparse toward apex. Abdomen very finely and feebly punctulate and more 

 densely pubescent. Length 3.7 mm. ; width 1.4 mm. 



Texas. 



The single type of this species is also a female, having the fifth 

 ventral very broad with the apex snbtruneate and pi'oduced in 

 the middle in a very broad and obtuse cuspiform projection, 

 which is greatly obscured by the dense, stiff, blackish pubescence 

 at the apical margin, the surface feebly deflexed and distinctly 

 impressed in the middle toward tip, and with several long, erect, 

 black setae in a transverse series at each side. It is closely allied 

 to sparsus, but is more elongate and cylindrical, with a some- 

 what less transverse prothorax differently rounded at the sides, a 

 slightly longer fringe at the sides of the elytra, and a shorter and 

 broader fifth ventral, with the apical cusp shorter and broader in 

 the female. In general form it is not unlike some species of 

 Scolytidffi. 



13. T. atricoriiis Lee— Proc. Acad. Nat. Sci., Phila., 1866, p. 352 



( Pristoscelis ) . 



Subcylindrical, strongly convex, polished, black, the upper sur- 

 face with a dark lustre ; leo;s bris-ht rufo-ferruginous through- 

 out ; antennse piceous-black, the basal joint black; epistoma and 

 labrum piceous-brown ; pubescence short, rather coarse and sparse 

 and readily removable; fimbria? even, short on the prothorax, 

 longer on the el3'tra. Head scarcely three-fourths as wide as the 

 prothorax, rather short, finel}^ and somewhat feebly punctato-ru- 

 gulose, the impressions feeble and widely separated ; labrum large, 

 broad, parallel, truncate at apex; eyes large but scarcely promi- 

 nent, attaining the prothorax ; antennae barel}^ as long as the pro- 

 thorax, rather stout, the tenth joint strongly' transverse. Pro- 



