Horn.] CYPHINI. 



P. Candida, n. sp. 



Form oblong, surface densely covered with nearly white scales. Head 

 and rostrum as long as the thorax, median groove fine, attaining the 

 occiput, surface sparsely punctured, densely scaly and with sparsely placed, 

 very short, white hairs. Eyes feebly prominent. Thorax as long as wide 

 at base, slightly narrowed in front, sides moderately arcuate, base feebly 

 Insinuate, apex obliquely truncate and slightly lobed in front and feebly 

 sinuate behind the eyes ; disc convex, median line feebly impressed, a 

 slight impression within each hind angle, surface granular, densely scaly 

 and with very sparse hairs. Elytra regularly oval, base feebly emarginate 

 at middle, humeri very obtuse, sides moderately arcuate, disc convex, 

 striate, striae with elongate, moderately closely placed punctures, intervals 

 moderately convex, densely scaly and with very short white hairs. Body 

 beneath and legs densely scaly, tibiae sparsely fimbriate. Anterior and 

 middle tibiae denticulate within and mucronate at tip, more strongly in the 

 anterior. Length .32 inch ; 8 mm. 



This species is the largest of the three at present known, and differs 

 abundantly from either of those just described^ as shown hi the synoptic 

 table and the remarks following. 



Two specimens, Colorado and Kansas, 



ACHRASTENUS n. g. 



Rostrum nearly horizontal, longer and narrower than the head, parallel, 

 slightly flattened, very feebly emarginate in front, distinctly notched 

 behind the mandibles, above with a fine median groove. Head very slightly 

 constricted behind the eyes. Scrobes widely open from above ; cavernous 

 in front, very shallow posteriorly, slightly arcuate and directed towards the 

 eyes. Eyes oval, slightly truncate in front and pointed beneath. An- 

 tennae moderately long, slightly scaly; scape feebly clavate, nearly attain- 

 ing the thorax ; funicle not longer than the scape, 7-jointed ; joints 1-2 

 longer, the second slightly longer than the first, joints 3-7 slightly obconi- 

 cal, sub-equal ; club oval. Thorax cylindrical, narrower in front, apex 

 obliquely truncate, base very slightly arcuate. Scutelluin moderate, oval. 

 Elytra oval, base moderately emarginate, humeri oblique, feebly promi- 

 nent. Intercoxal process moderate, oval at tip. Second segment of abdo- 

 men longer than the two following united, separated from the first by a 

 strongly arcuate suture. Anterior and middle tibiae feebly mucronate ; ar- 

 ticular surfaces of hind tibiaa feebly cavernous, sparsely scaly. Claws free. 

 Body densely scaly. 



According to the system adopted by Lacordaire, this genus belongs to 

 the Eustylides of the OtiorhyncMdes. The construction of the sternal side 

 pieces excludes it at once from the latter tribe. The scrobes, and in fact the 

 structure of the rostrum generally, are very nearly that of Peritelus, and 

 its appearance, shape and coloration do not differ remarkably from P. 

 griseus of Europe. I prefer, however, to place the genus here as a de- 

 graded member of the tribe with affinities with the OtiorhyncMni. In- 



PROC. AMER. PHILOS. SOC. XV. 96. M 



