Coleopterological Notices^ VI. 755 



base; raargin very narrow; apex broadly, circularly arcuate; collar short and 

 broad ; disk rather convex, densely and strongly granulato-rugose. Elytra nearly 

 two-thirds longer than wide and about two-thirds wider than the prothorax, 

 the sides parallel and almost straight, slightly arcuate in the female, dehiscent 

 and broadly rounded at apex; humeri well exposed at base; disk even, finely, 

 very densely and compositely sculptured and opaque. Abdomen shining, 

 finely, sparsely punctulate, the legs moderately long and slender. Lengtli 2.9 

 mm.; width 0.75 mm. 



Utah (Great Salt Lake). Hubbard and Schwarz. 



The description is drawn from the male, this sex having the 

 fifth ventral rather shorter than the fourth, broadly truncate at 

 apex, with a very feeble sinuation and with a slightly thickened 

 bead-like edge toward the middle ; only the p^'gidium is ex- 

 posed at apex. 



Besides the denser, more opaque and differently ornamented 

 elytra, this species differs from salicola in its relativel}' smaller 

 head and coarser sculpture of the pronotum. 



7. T. alutaceiis Lee— Ann. Lye. Nat. Hist., N. Y., V, p. 155 (Authicus) ; 

 Proc. Acad., Phila., 1852, p. 104 (Tanarthrus). 



Narrow, feebly convex, rather shining and scarcely distinctly 

 reticulate, black throughout, the antennae and legs in part paler ; 

 pubescence fine, very short and not dense. Head full}^ as long as 

 wide, broadly arcuate and not distinctly impressed at base ; the 

 angles \Qvy broadly rounded to the small, anterior but somewhat 

 convex eyes ; punctures large, very shallow and sparse, without 

 trace of a median smooth line ; antennae short, moniliform one- 

 third longer than the head, the subdivided eleventh joint as long 

 as the two preceding. Prothorax trapezoidal, the sides oblique 

 and straight and the apex broadly arcuate, rather small, much 

 narrower than the head and slightl^'^ transverse, the punctures 

 large, very shallow and sparse. Elytra one-half longer than wide 

 and three-fifths wider than the prothorax, with unevenly and 

 sparsely scattered, shallow, craterform areolae, the hairs arising 

 from almost imperceptible punctures of the interspaces. Meta- 

 sternum highly polished. Abdomen shining, not distinctly punc- 

 tured. Legs slender, moderate in length. Length 2.2 mm.; 

 width 0.55 mm. 



California (San Diego). This species difl'ers greatly from the 

 others of the subgenus in its small size, feeble sculpture, more 



Anxals N. Y. Acad. Scr., VIII, Nov., 1895.— 51 



