Hhynchltes angtistatiis, Herbst. 



— mbricoilis. Nob. Journ. Acad. Nat. Sc. & Melsli, 



Catal. ^ , 



oi^ripes, Melsb. quercws. Knoch in Melsa Catal. 

 — ruficolis, Germar Sp. Nov. p. 188. 

 The latter h very remarkable in having the tboras of 

 the same colour as the elytra, Dejean in his Catalogue, 

 places the species in the genus Rhinomacer. 

 hirius, Fahv. 

 ■R. aeneus? Bohemann. 



Doubts have been expressed of our insect being the 

 hirtus of Fabr.. but it agrees better with the description 

 than any. ■ It 'is also, as Pabricius sajs, of the stature & 

 magnitude of R. pubescens. 

 3. R. aeratus, Brassy, antennae, rostrum & foeDeath obsc* 

 wre bluish. 



Inhab. Pennsylvania. 

 • Curculio aeratus, Knoch in Melsh. Catalogue. 



Body brassy, punctured : rostrum very slightly dilating 

 towards the tjp. with an impressed line above, from the 

 base to the middle -.front with small punctures ^ thorax 

 with dense punctures : elytra with a transverse, dilated but 

 butnat prafaund, common indentation ; with striae of tra= 

 nsverse, large punctures : beneath blackish blue. 



Length neai'ly one tenth of an inch, 



This is the smallest North American species yet kooWD« 



I have found it on the Oak in June. 



Genus PTEROCOLUS, Sch, 

 Antennae 11 -jointed, not geniculate; basal joint not 

 much elongated ; eighth joint transverse linear; 9th. and 

 10th. transverse subquadrate, dilated, 4"with the ultimate 

 semioval one, remote, perfoliated, forming an oblong oval 

 club : rostrum dilated at tip : head rather long behind the 

 eyes, neck not contracted : scutel transverse subquadrate^ 

 elytra somewhat abbreviated; each rounded at tip, depres- 

 sed above : podex and part of the back, naked : feet robust: 

 thighs unarmed, dilated ; tibiae unarmed, ciliate densely 

 on the exterior edge with very short spines, and with small 

 spines around the edge of the tip : body rounded . 



This genus differs from Rynchites by the rounded form 

 of the bodyj the shorter and depressed elytra, more diva^- 



