238 AMERICAN COLEOPTERA. 



Ti'icliocliroiis inciiltus n. sp.— Oblong, moderately elongate, black ; 

 legs piceo-rnfous, the tibite and tarsi paler; antennse pieeons externally, paler 

 at base; pubescence cinereous, not dense, snbrecurabent, interspersed throughout 

 the upper surface with moderately long suberect blackish hairs; pronotal fringe 

 irregular, long and bristling, in great part cinereous; elytral fringe long, cinere- 

 ous. Head five-sixths as wide as the prothorax, surface polished and sparsely 

 rather coarsely punctate ; labrum strongly transverse, more than twice as wide 

 as long, apical margin iiarrowly pale. Antennae unusually long and rather 

 stout, passing the elytral humeri ; fifth joint evidently wider than the sixth and 

 much larger than the fourth ; joints 6-10 gradually slightly longer, the tenth 

 plainly longer than wide, sixth about as wide as long; inner angles acute and 

 bristling with erect hairs. Prothorax a little wider than long, widest at basal 

 two-fifths, sides moderately rounded posteriorly, convergent aud nearly straight 

 anteriorly, front angles obtuse, feebly defined ; hind angles rounded and indis- 

 tinct; surface coarsely sparsely punctate. Elytra about one-fifth wider and 

 about two and two-third times as long as the prothorax, sides parallel, apex 

 obtusely rounded, surface coarsely rather closely punctate. Length 2.9 mm. 



Mesilla Park, May 7 (Cockerell). 



The type is, a male and has the fifth ventral truncate and just 

 perceptibly sinuate. The tibial spurs are slender and spiuiforni 

 throughout. The prosternuin before the coxse is about one-third 

 longer than the coxal thickness. 



This species would best be placed after comatus in Casey's table. 

 Since writing the above I have seen a series of specimens taken at 

 Alamogordo, New Mexico, by Viereck. In these the legs are of a 

 clearer rufous color, the upper edges of the femora alone being 

 piceous. The female is as usual slightly broader than the male ; 

 the antennae less stout and barely reaching the humeri, the outer 

 angles of the joints with fewer bristling hairs. The long hairs of 

 the pronotal fringe are black, the shorter ones cinereous. 



Trichochrous placatus n. sp. — Black, moderately shining, legs red, 

 antennae rufo-piceous, joints 2-5 paler. Pubescence cinereous, not dense, plenti- 

 fully interspersed with erect black setae; pronotal fringe long, irregular and 

 mostly black ; elytral fringe long, less irregular, pale in color. Head less than 

 three-fourths as wide as the prothorax, eyes not very prominent ; surface pol- 

 ished, finely remotely punctate; labrum not much wider than long, apical mar- 

 gin strongly rounded, piceous in color, apex paler. Antennae gradually rather 

 strongly incrassate, fifth joint not appreciably wider than the sixth, very slightly 

 transverse; outer joints strongly transverse, tenth nearly twice as wide as long- 

 eleventh about one-half longer than wide. Prothorax very little wider than 

 long, sides broadly arcuate and convergent from base to apex, angles all much 

 rounded; disk finely distantly punctate, the punctui-es separated by two to three 

 times their own diameters at middle, but a little closer at sides. Elytra one-third 

 wider than the prothorax, two-thirds longer than wide, parallel, punctuation 

 coarser and somewhat closer than on the pronotal disk. Beneath cinereo-jjubes- 



