492 Coleopterological Notices. 



Although the last two species differ conspicuously from harrisi, 

 I have been unable to detect the slightest generic divergence. The 

 metasternal side-pieces being triangular, more strongly so and also 

 a little shorter in spiculum than in pilosicornis. 



T. spiculum n. sp. — Form rather slender, parallel, moderately convex, 

 shining throughout, dark castaneous ; upper surface almost glabrous, the 

 hairs growing from the sparse pronotal punctures very short and inconspicu- 

 ous ; sterna rather densely pubescent, the hairs not very long ; abdomen 

 sparsely but distinctly pubescent. Head nearly as long as wide, coarsely, 

 unevenly punctured ; eyes large, nearly as in harrisi but more narrowly 

 separated above and . beneath ; antenna! five-sixths as long as the body, 

 robust, strongly compressed, glabrous, finely, extremely densely punctato- 

 scabrous and rather dull, first, second and the extreme basal part of the third 

 joints only, polished and coarsely punctate ; basal joints in length propor- 

 tioned nearly as in harrisi, eleventh joint very long and slender, compressed, 

 fully two-thirds as long as the tenth and abruptly narrower in apical third. 

 Prothorax scarcely one-third wider than the head, a little less than twice as 

 wide as long ; base and apex feebly lobed in the middle ; disk very convex, 

 almost perpendicular at the sides, the marginal line not very prominent ; 

 median groove entire, broadly, feebly impressed, the surface throughout very 

 coarsely and unevenly punctate, sparsely so toward the middle, very coales- 

 cently on the flanks ; sides feebly, almost evenly arcuate, the spiniform pro- 

 cess situated behind the middle, abruptly projecting and spiculiform. Scutel- 

 lnm glabrous, coarsely punctate. Elytra parallel, a little more than twice as 

 long as wide, nearly seven times as long as the prothorax and, in the middle, 

 about two-thirds wider, truncate at apex, the sutural spines broad, short and 

 everted ; disk with punctures and raised lines almost as in harrisi, the punc- 

 tures being coarser and not so dense. Legs and tarsi slender. Length 23.0 

 mm. ; width 8.0 mm. 



New Mexico (Las Vegas). Mr. H. Meeske. 



Differs greatly from both harrisi and pilosicornis in the evenly 

 arcuate sides of the prothorax, with the processes very abruptly 

 projecting therefrom as slender spikelets. The description is taken 

 from the only known specimen which'is a male, the apex of the 

 fifth ventral segment being broadly sinuate in circular arc, the 

 lateral angles obtusely rounded, the edge fimbriate with extremely 

 short fine hairs, and having a convex bevel. 



T. pilosicornis n. sp. — Rather slender and depressed, moderately shin- 

 ing, pale castaneous-brown throughout, the upper surface almost glabrous, 

 the hairs on the pronotum short and sparse. Head scarcely as long as wide, 

 coarsely but rather densely punctate ; eyes large, rather narrowly separated 

 above and beneath, deeply, angularly emarginate near the upper extremity ; 



