482 Coleopterological Notices, VI. 



apex of the t'pistonia and entire labnini bright rufo-ferrugiiious, the latter 

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

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

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

 the sides are parallel 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, rounded; 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. Eh/Ira not (juite 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 puuctulate and more 

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



Texas. 



The single tj'pe of this species is also a female, having the fifth 

 ventral ver}- broad with the apex snbtruneate and produced in 

 the middle in a very broad and obtuse cuspiform projection, 

 w'liich is greath' obscured by the dense, stiff, blackish pubescence 

 at the apical margin, the surface feebl\- deflexed and distinctly 

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

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

 to fipcu'sus, but is more elongate and cylindrical, with a some- 

 what less transverse prothorax dilferentl}' rounded at the sides, a 

 slighth' longer fringe at the sides of the elyti'a, 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 

 Scolytidse. 



13. T. atricoi-iii<i Lee— Proc. Acad. Nat. Sci., Phila., 1866, p. 352 



(Pristoscelis). 



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

 face with a dark lustre ; legs bright rufo-ferruginous through- 

 out ; antennae 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 el^'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 ; e^yes large but scarceh' promi- 

 nent, attaining the prothorax ; antenme barelj' as long as the pro- 

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



