North American Species of Trogophlceus. 333 



5 T. den tiger n. sp. — Rather slender, moderately depressed, pice- 

 ous; prothorax and elytra dark red-brown; antennae and legs throughout 

 pale flavate; finely and extremely densely punctate throughout, more 

 finely so on the abdomen; pubescence dense, extremely fine and short ; 

 integuments scarcely shining. Head moderate, slightly narrower 

 than the prothorax; antennal prominences pronounced; eyes large, 

 slightly prominent; tempora behind them less than one-half as long, 

 strongly rounded; antennae moderate, joints two to four gradually 

 and rapidly decreasing in length, second twice as long as wide; club 

 gradual, moderate; tenth joint slightly wider than long. Prothorax 

 widest at anterior third, nearly one-half wider than long; sides strong- 

 ly rounded, almost angulate anteriorly, very strongly convergent and 

 broadly sinuate thence to the base, strongly convergent and feebly 

 arcuate anteriorly to the apical angles which are produced anteriorly, 

 and acute; base broadly, feebly arcuate, two-thirds as wide as the disk, 

 much narrower than the apex; the latter broadly emarginate, bottom 

 of emargination broadly, feebly arcuate; basal angles obtuse, rounded; 

 disk moderately convex; two longitudinal impressions rather distinct; 

 punctures fine and subcoalescent. Elytra slightly wider than the 

 prothorax and one-half longer, not as long as wide, each feebly im- 

 pressed along the sutural bead, which is very fine; punctures fine, 

 separated by their own widths. Abdomen slightly narrower than the 

 elytra; sides parallel and very feebly arcuate; border moderate, strongly 

 elevated; surface feebly convex, extremely minutely and densely 

 punctate; pubescence fine, subrecumbent. Legs slender; tarsi very 

 short. Length 2.8 mm. 



Arizona (Yuma 2; Tu9son 2). 



May be distinguished at once by its brown color and aluta- 

 ceous lustre. 



6 T. mexicanu^ n. sp. — Form rather robust and depressed; dark 

 red-brown; abdomen black, with the posterior margin of the two apical 

 segments pale; legs flavate; pubescence very short, fine and rather 

 dense; integuments feebly shining. Head distinctly narrower than the 

 prothorax, very minutely, rather feebly and extremely densely punc- 

 tate, subalutaceous; antennal prominences rather strong and elongate; 

 eyes large, moderately prominent; tempora one-half as long, feebly 

 rounded, not acute and prominent behind. Prothorax a little less than 

 one-half wider than long, widest at anterior two-fifths, where the sides 

 are very strongly rounded and subangulate, thence very strongly con- 

 vergent and very feebly sinuate to the base, and nearly as strongly con- 

 vergent to the acute and slightly dentiform apical angles; base very 

 feebly arcuate, scarcely two-thirds as wide as the disk; apex truncate 

 between the slightly advanced angles; disk feebly convex, finely, rather 

 feebly and extremely densely punctate; punctures in mutual contact;. 



