NO. 16 GENUS PANSCOPUS SCHOENHERR BUCHANAN 3 



Abdomen of both sexes 5-segmented and densely scaly-setose, the derm con- 

 cealed except apically ; antennal scape rather densely clothed with setae and 

 slender scales ; pronotum with broad, usually densely placed scales ; serial 

 scales on elytra mostly subcircular and covering, or almost covering, the 

 punctures Doiichonotus, n. subg. 



(). Trochanters without a bristlelike seta; a fine line, marking position of mete- 

 pisternal suture, usually visible ; scales everywhere very dense ; alternate 

 clytral intervals costate and setose, even intervals practically nonsetosc 



Psciidopanscopns Buchanan. 



Trochanters with a bristlelike seta; metepisternal suture almost always visible 



for a short distance only opposite hind coxa (or obsolete) ; even intervals 



usually with at least a sparse row of setae 7. 



7. Elytral intervals flat or subequally convex, the setae, which usually are 

 slender and subacute at tip, about equally developed on all intervals ; or. 

 if the setae are evidently more numerous on alternate intervals, some of the 

 serial scales on elytra are slender; rostrum not or faintly carinate; pro- 

 notum smooth or rugose-tuberculate Ncopanscopits Pierce. 



Alternate intervals elevated (sometimes very feebly so), their setae more 

 abundant than on even intervals; elytral setae blunt (except in longus) ; 

 serial scales on elytra rounded ; rostrum often carinate ; pronotum more 

 or less rugose-tuberculate and, at middle, usually sulcate. . A^^oni/W/r.? Casey. 



Subgenus PANSCOPUS Schoenherr (sens, str.) 



Paiiscopiis ScnoKNHERR, Genera et species Curculionidum, vol. 6, pt. 2, p. 266, 

 1842. (Monobasic type, as designated by Schoenherr, loc. cit., p. 267. 

 Barynotns erinaceus Say, Descriptions of new species of Curculionites of 

 North America, p. 12, 1831.) 



An examination of two cotypes of P. altcrnatus Schaeffer shows 

 that this species has been misinterpreted in the Hterature. The error 

 is corrected in the following key : 



1. Each serial puncture of elytra with a hair or seta, none with a rounded scale; 



alternate intervals costate and setose, the even intervals usually with a 

 sparse irregular row of setae (?) or practically nonsetose (c?) ; scape reach- 

 ing two-thirds to almost entirely across eye at middle ; side of elytra at 

 humerus straightly oblique, or at most faintly sinuate; corbellary plate 

 effaced; length, 5.5-7 mm [Black Mountain, N. C. (type locality) ; Mount 



Mitchell, N. C. (A. Nicolay) ] altcrnatus Schaeffer. 



Scales of serial punctures oblong to rotund in general, a few sometimes seta- 

 like but not hairlike; humeral situation usually distinct; corbellary plate 

 present though poorly defined as a rule and not limited anteriorly by a dis- 

 tinct second row of spines 2. 



2. All the elytral intervals setose, the alternate intervals, which usually are 



slightly prominent, with more abundant setae (rarely are the alternate in- 

 tervals evidently costate and the second and fourth devoid of setae except 

 toward base and apex) ; front often broadly concave; rostrum wider, its 

 median carina usually coarse and, in profile, distinctly arched ; scape reach- 

 ing one-half to three-fourths across middle of eye; length, 6-7 mm; <^ un- 



