CURCULIONIDES. 287 



This ip the CurcuUo quercus Melsh. Catal. 

 Belongs to the subgenus Cophirus Sch. 



2. Z. OPERCULATUS nob. {Cnjptorhi/nchiis) Jour. Acad. Nat. 

 8ci. 



3. Z. OOULATUS nob. {Cnjptorhi/nchus) Jour. Acad. Nat. Sci. 



CENTIilNUS Schonh. 



C. SCUTELLUM ALBUM. — Puncturedj with scales; scutel white. 



Inhabits United States. 



Curculto scuteUum cdhum Knoch, in Mclsh. Catal. 



Body black, densely punctured, and with short pale yellowish 

 or whitish scales ; head minutely punctured : rostrum long, punc- 

 tured, with a short, impressed line at base : antennae piceous : 

 thorax with dense orbicular punctures covering the whole sur- 

 face ; the tip of the posterior middle white at the scutel : scutel 

 white : elytra with deeply impressed strife ] interstitial lines flat, 

 broad, densely punctured : beneath with whitish metallic scales, 

 much more dense than on the superior surface. 



Length over three-twentieths of an inch. 



Var. a. Over one-fifth of an inch, the rostrum is more recti- 

 linear towards the tip. 



Var. c. Elytra with a slight piceous tinge. 



I have taken this insect in Pennsylvania, Indiana and Mis- 

 souri. The Vivriety is from Arkansaw. 



CIONUS Clairv. 



G. SCROPIIULARI.E Auct. My specimen is so much like the 

 European individuals that it can hardly be considered to vary 

 from them. 



KHYNCHOPIIORUS Herbst. 



1. R. PR^POTENS. — Thorax with three black vittge. 



Inhabits Arkansaw. 



Body black, covered with dense, prostrate, cinereous hairs : 

 rostrum shorter than the head and thorax ; thorax with three 

 black vittge, extended behind at the scutel : elytra with double 

 series of punctures ; a black vitta on the middle of each, and a 

 narrower subsutural one. 



Length more than three-fifths of an inch. 



This is a fine insect. 



