^0.3.] LE CONTE ON EOCKY MOUNTAIN COLEOPTEEA. 519 



Yeta Pass ', one specimen. Eesembles closely the European G. tiliw, 

 but is larger and more elongate, with the sides of the prothorax more 

 rounded. The sutures of the antennal club are straight. 



Xylocleptes cucurbits. — Slender, cylindrical, black, rather shin- 

 ing, villous with long, sparse, fine, erect yellow hairs. Head finely granu- 

 late, flat. Prothorax longer than wide, oval, very slightly wider behind, 

 densely punctato-granulate, granules flat. Elytra densely and coarsely 

 rugosely punctured 5 punctures arranged slightly in rows, declivity ob- 

 lique, not retuse or sharply defined. Antennse and legs ferruginous. 

 Length, 2™™. 



Utah, on wild gourd 5 sent to me by Dr. H. A. Hagen. The antennal 

 club on the outer face has a smooth oval spot at the base; the sutures 

 are indistinct and nearly concentric with the sides and distal end of this 

 spot, as in the European X. hisjnnus, to which, otherwise, this and X. deci- 

 ])iens Lee. bear no resemblance. 



PiTYOPHTHOEUS DELETUS. — Cylindrical, slender, shining black or 

 brown, nearly glabrous, with a few fine hairs near the sides and upon 

 the prothorax ; head sparsely fringed with long hairs, front flat, sparsely 

 punctured. Prothorax not wider than long, a little wider behind, 

 sparsely punctured, with a few distant acute reclinate tubercles arranged 

 in transverse rows ; two are upon the apical margin. Elytra with very 

 fine, nearly effaced rows of small i3unctures more distinct near the base; 

 declivity smooth retuse, impressed near the suture. Antennae and legs 

 ferruginous. Length, 12™™. 



Veta Pass, Colo. Five specimens examined show no sexual differ- 

 ences, and are probably all females. This species may be placed near 

 annectens Lee. Pr. Am. Phil. Soc. 1878, 622, from Florida, but is quite 

 different, and easily recognized by the characters given above. 



ScoLYTUS UNISPINOSUS. — I refer to this Oregon species, heretofore 

 represented by but two ^ , a 9 found at Yeta Pass, which differs by the 

 head moderately convex and punctured, and the compressed spine of 

 the ventral declivity replaced by a short compressed tubercle at the 

 apical margin of the second segment. The specimen referred to by me 

 from Lake Superior (Pr. Am. Phil. Soc. 1878, 626) as probably belong- 

 ing to this species, has the tubercle on the face of the second ventral 

 segment not compressed and not extending to the apical margin. It is, 

 perhaps, a different species, but in the absence of ^ specimens cannot 

 be properly described. 



" PHLCEOTErBUS PUBEEXJLUS. — Cylindrical, black, nearly opaque, 

 clothed with fine erect yellowish pubescence ; base of antennae and tarsi 

 piceous. Head sparsely finely punctured ; front nearly smooth, shining, 

 broadly concave, with two small acute cusps on the epistoma. Protho- 

 rax wider than long, sides oblique slightly rounded, coarsely punctured, 



