LeConte.] OEUTORHYJ^-CHINI. 275 



A— b. 



4. C. decipiens, n. sp. 



Rather elongate, black, beneath clothed with gray scales, above with 

 a few scattered white hairs, and an elongate white sutural spot at the base 

 of the elytra. Head densely punctured; beak ((j^) half as long as the body, 

 cylindrical, curved, strongly punctured, striate and carinate towards the 

 base. Prothorax as long as wide, narrowed in fi'ont, sides slightly rounded 

 behind, sinuate in front, broadly constricted near the tip, apical margin not 

 elevated, postocular lobes very feeble, disc very coarsely punctured, chan- 

 neled behind, tubercles wanting. Elytra elongate-oval, wider than the 

 prothorax, convex, very deeply striate, interspaces not wider than the strite, 

 convex, rough with acute granules. Antennte with 6-jointed funicle: 

 first and second joint longer, the first stouter, club moderate, oval-pointed. 

 Thighs armed with a small but acute tooth; tibite rather less slender than 

 usual, claws cleft. Length 2.4 mm. ; .09 inch. 



(^. Last ventral segment with a transverse apical impression. 



Kansas and Michigan; two (^. This species has a singular resemblance 

 in form and color to RMnoncus longidus, but the beak and sculpture of the 

 elytra are quite difterent. The generic characters seem to be very nearly 

 those of RTiytidisomus, but the elytra, though rounded in form ai"e more 

 elongate. I infer therefore that that genus, founded upon a single Euro- 

 pean species should be suppressed. 



B. 



5. C. rudis, n. sp. 



Dark brown, beneath densely clothed with rather large dirt-colored 

 scales, above thinly pubescent with brown hair. Head densely punctured, 

 finely carinate; beak (9) half as long as the body, shining and sparsely 

 punctured towards the tip, striate and punctured towards the base. Pro- 

 thorax wider than long, strongly rounded on the sides, much narrowed 

 and constricted near the tip; apical margin elevated, postocular lobes broad 

 and feeble ;^ disc convex very coarsely punctured, very deeplj" channeled, 

 with pale scales in the channel and at the middle of the apex; tubercles 

 wanting. Elytra deeply striate, interspaces wider, somewhat convex, 

 rough. Funicle rather long, 7-jointed, first and second joints longer, the 

 first stouter; club moderate, oval pointed. Legs reddish testaceous, thighs 

 strongly toothed, claw^s armed with a short, acute basal tooth. Length 2.8 

 mm. ; .11 inch. 



One badly preserved specimen; Kansas. 



6. O. sericans, n. sp. 



Oblong, depressed, dark brown, beneath densely clothed with small, gray 

 scales, above with fine, scale-like brown hairs, with a silky lustre. Head 

 densely punctured, feebly channeled, beak punctured and striate towards 

 the base. Prothorax wider than long, sides nearly parallel behind, then 

 strongly narrowed and constricted near the tip; apical margin elevated, 

 postocular lobes large and broad; disc denselj', not coarselj' punctured, 



