Horn.] • ±0 ^ [Sep. 10, 



face coarsely punctured. Head coarsely but sparsely punctured. Eyes 

 oval, transverse coarsely granulated, situated at base of rostrum. Thorax 

 longer than wide, strongly constricted in front, sides behind the constric- 

 tion moderately arcuate, thence sub-parallel to base which is slightly 

 narrower ; surface coarsely variolato-punctate. Scutellum invisible. 

 Elytra elongate oval, at base broader than thorax ; sides arcuate, feebly 

 converging to apex ; surface deeply and broadly striate, striae coarsely 

 punctured at bottom, intervals narrow, cariniform but obtuse at summit. 

 Body beneath coarsely but sparsely punctured. Suture between the first 

 two abdominal segments deeply impressed. Anterior coxae moderately 

 distant, middle coxae nearly three times as widely separated, hind coxae 

 very distaut, closely approximating the margin of the elytra. Inter-coxal 

 process broad, short, truncate in front. Tarsi five jointed. Length .10 

 inch ; 2.5 mm. 



The funicle of the antennae is composed of four joints only, the club 

 rather suddenly formed and oval. This species from the tarsal and 

 antennal characters, is one of the most easily known Rhynchophor in our 

 fauna. 



Occurs over our entire fauna east of the Mississippi, under bark. 



Dryopkthorus Mtuberculatus Fab. is said by Boheman to occur in Cali- 

 fornia. 



Pentarthrides . 



This group is characterized by the funicle of the antennae having five 

 joints. Two genera occur in our fauna which possess otherwise rather 

 diverse characters, one being of the general aspect of Dryophthorus, the 

 other of the commoner Rhyncolustype. 

 Eyes small, rounded, very coarsely granulated, situated 



on the rostrum. Elytra oval Dryotribus. 



Eyes moderate, oval, not very coarsely granulated, 

 situated on the head. 



Elytra oval, scape of antennae long, ssrobes encroach- 

 ing on the eyes beneath Amaurorhinu.s. 



Elytra cylindrical, scape short, scrobes beneath the 



eyes posteriorly Wollastonia. 



Dryotribus, n. g. 

 Habitus of Dryophthorus corticalis. Rostrum moderately elongate, 

 arcuate, slightly flattened, at base constricted. Head suddenly broader 

 than the rostrum, globular. Eyes small, very coarsely gi-anulated, com- 

 posed of about twenty facets, round, situated at the side of rostrum one- 

 fifth from base. Anteuna3 inserted midway between the eyes and tip of 

 rostrum, scrobes moderately deep in front, lateral, gradually becoming 

 inferior, not confluent posteriorly and not encroaching upon the eyes. 

 Scape of antennae elongate, feebly clavate at tip, as long as the remaining 

 joints together ; funicle five-jointed, first joint obconical, stouter and 

 longer thon the following, second obconical slightly longer than the third, 



