168 cuRCULioiaD^. 



[LeConte. 



the sides, narrowed in front, feebly constricted near the tip ; the elytra 

 wider than the prothorax, strijs deep, slightly punctured, interspaces flat. 

 The beak is one-half longer than the head and prothorax, and is separated 

 from the head by a deep transverse impression. 



Scape of antennae not attaining the eyes 1. scapalis. 



" " nearly " " 2. constrictus. 



1. D. scapalis, n. sp. 



Dark-brown, densely clothed with whitish scales. Beak strongly punc- 

 tured, anlenna? slender, with the scape not reaching the eyes, inserted about 

 the middle of the beak. Head sparsely punctured, separated from the beak by 

 a sharp transverse impression. Prothorax densely punctured, very convex, 

 not longer than wide, much rounded on the sides, narrowed in front, and 

 constricted at the sides at a greater distance from the tip than usual, base 

 nearly straight. Elytra one-half wider than the prothorax, convex, feebly 

 emarginate at base, humeri prominent, rounded ; strite deep, strongly 

 punctured, interspaces flat, sparsely rugosely punctured. Thighs strongly 

 clavate. Length 4.5 mm. ; .17 inch. 



One specimen, Kansas. Larger than the next, and easily known by the 

 short antennal scape, which fails to reach the eyes by a length equal to the 

 first joint of the funicle. 



2. D. constrictus. Rhynchanus constr. Say, Journ. Ac. Nat. Sc. Phila. 

 iii, 313; ed. Lee. ii, 176; Balaninua comtr. Say, Cure. 26 ; ed. Lee. i, 

 294; Sch. Cure, vii, 293 ; Erirhinm constr. Gyll., Sch. Cure, iii, 286. 



Kansas and Missouri, not rare. The beak is not quite so long in (^ as 

 in 9 ; it is punctured in the former, and squamose behind the antennae; in 

 the latter it is glabrous, except at the base, and smooth except on the sides 

 near the base. Smaller than the preceding, with the sides of the thorax 

 less rounded ; the color is blackish, with the antennae and legs dark ferru- 

 ginous. Either of these species will agree with the descriptions of Say 

 and Gyllenhal. The latter author does not mention the transverse con- 

 striction at the base of the beak. 



PACHYTYCHIUS Jekel. 



The species which I have referred to this genus are rather convex and 

 stout insects, having the sides of the prothorax and elytra rounded. They 

 agree with Desmoris in having the second joint of the funicle elongated, 

 but the antennae are stouter, and the club larger. They difter from Smi- 

 cronyx chiefly by the second joint of the funicle being obviously longer 

 than the third. The claws are connate for one -half their length. 



Elytra mottled with spots of gray scales 1. amoenus. 



with broad white margin 2. discoideus. 



1. P. amoenus. Tychius ammim Say, Cure. 26; ed. Lee. i, 294; Gyll., 

 Sch. Cure, iii, 419. 



Western States, and Lake Superior. A very robust species, clothed 



