168 JOHN L. LECONTE, M. D. 



head in front of the eyes is much more evident than in any of the 

 Tomiciitl. 

 I would modify the table of our author as follows : 



A. Club of anteniife solid, large, much compressed, uniformly pubescent; tarsi 

 with third joint not dilated, scarcelj' emarginate: 



Funiculus very short, 1-jointed Chramesus. 



Funiculus longer, 5-jointed Polygraphus. 



B. Club of antennae lamellate Phloeotribus. 



C. Club of antennae annulated : 



a. Ventral segments subequal : 



Club of antennse oval, elongate or fusiform : 



Front tibise serrate Hylesinus. 



Front tibiae coarsely toothed Cnesinus. 



Club oval, smaller, subacute : 



Tarsi with joints 1 — 3 equal Hylurgus. 



Tarsi with first joint shorter Carphoborus. 



Club shoi-t, broad, compressed and concave Dendroctonus. 



h. First and fifth ventral segments elongate, sutures very 



deejjly impressed: 

 Club small, oval, basal half glabrous Hylastes. 



CHRAMESUS Lee. n. g. 



Body oval, convex, covered with erect short bristles; head large, 

 prominent, concave iu the male, slightly convex in the female: eyes 

 transverse, feebly emarginate, finely granulated ; antennae with the 

 scape long and slender, nearly as long as the head, and very gradually 

 enlarged towards the tip; funiculus of but one distinct joint, which is 

 conical, not longer than wide; the remaining joints are obsolete, and 

 visible only as a corneous ridge on the upper edge of the base of the 

 club, which is very much compressed, uniformly pubescent, without 

 trace of articulation on either face, as long as the head, less than half 

 as wide as its length, oval subsecuriform, lower outline nearly straight, 

 upper one curved, obtusely rounded at tip. Prothorax one-half wider 

 than long, much narrowed iu front, rounded on the sides, and less so 

 at the t'ip. Elytra about twice as long as the thorax, convex, obtusely 

 rounded behind, basal margin acute and subserrate, as in Hi/lcsinus. 

 TibicG dilated gradually, feebly serrate; tarsi with the joints 1 — 3 very 

 short, od scarcely dilated, 4th joint nearly as long as the others united, 

 with large claws. 



C. hicoriae. — Oval, convex, black, not shining, antennae yellow ; body clothed 

 with short stifli" ashy hairs, with rows of longer erect bristles upon the inter- 

 vals of the elytra; head feebly punctured, deeply concave in the male; pro- 

 thorax broader than long, strongly narrowed in front, coarsely, not densely 

 punctured, feebly bisinuate at base; elytra very obsoletely striate, finely, not 

 densely punctulate. Long. 1-5 mm. 



Bred from twigs of hickory, similar to those from which Prof S. S. 



