Horn.] 



CYPHIXI. 91 



slightly beyond the middle of the eye ; funicle 7-jointed, first joint short 

 robust, second longer, joints 3-7 cylindrical, sub-equal ; club oval. Thorax 

 conical, truncate at apex, feebly bisinuate at base. Scutellum oval, nar- 

 rower at base. Elytra wider than the thorax, slightly wider behind the 

 middle, apex sub-acuminate. Metasternum elongate. Intercoxal process 

 moderate, oval at tip. Second abdominal segment very much longer than 

 the two following combined, separated from the first by a strongly arcuate 

 suture. Anterior and middle tibiae mucronate ; articular surface of hind 

 tibia3 enclosed (cavernous). Claws very small. Body densely scaly. 



The affinities of this genus are so i)lainly with Ci/phus that it is rather 

 singular they should have been overlooked by Lacordaire. 



B. acutus Say {Chlorophanus), Journ. Acad., 1824, p. 310; Cure. N. 

 A., p. 7 ; Am. Ent. i, p. 266 ; Boh. Sch. Gen. Cure, viii, 2, p. 434. 



Form oblong. Head and rostrum not as long as the thorax, sparsely 

 punctured, very densely scaly. Thorax conical, slightly longer than wide 

 at base, apex truncate, base feebly bisinuate, sides very feebly arcuate at 

 middle ; disc slightly flattened, sparsely punctured, densely scaly. Elytra 

 oblong, sub-acuminate at tip, base broader than the thorax, humeri promi- 

 nent, sides very feebly arcuate, slightly divergent ; surface feebly striate, 

 striae with coarse punctures, intervals feebly and alternatelj^ more convex, 

 densely scaly. Body beneath and legs densely scaly. Length .3(5 inch ; 

 9 mm. 



The color of the scales covering the body is earthy brown, the tip of the 

 elytra much paler and with a broad post-median dark brown fascia bor- 

 dered anteriorly with paler. The tibi;e of both sexes are fimbriate within. 

 The last abdominal segment is acutely triangular in the female, rounded in 

 the male. 



Occurs in Pennsylvania, Georgia, and Kentucky. 



Group II. Artipi. 



Elytra oval or oblong, not wider at base than the thorax, humeri oblique, 

 or broadly rounded. Scutellum distinct. Antennae long, scape passing the 

 eyes behind. Articular surfaces of hind tibiae cavernous. Rostrum rather 

 deeply notched behind the base of the mandibles. 



The essential difference between this group and the preceding is found 

 in the form of the elytra. The antennte (especially the scape), are longer 

 and more slender. The rostrum varies in form and is usually short, stout, 

 flattened above and deeply notched at tip; In one genus however the ros- 

 trum is decidedly Periteloid with less divergent alae. All the genera ex- 

 cepting Artipus have the anterior tilnse denticulate within. 



Our genera are as follows : 

 Rostrum short, stout. Scrobes linear in front. ^ 



Articular surface of hind tibiae scaly ; anterior 



tibia; not denticulate within ARTIPUS. 



Articvdar surftices of hind tibiae glabrous ; ante- 

 rior tibiae more or less denticulate within. 



