92 



179. The Hickory Twig- Girdler. 



Oncidires cingulata Say. 



The adult irirdlesthe twigs of oak, hickory, pei^iinnioii, and otlier trcey, sometimes 

 so extensively as to cause serious injury. 

 Exhibit: Adults, work, tigure. 



INJrRIN(J THE INNER BARK AND SAPWOOl). 



THE BARK WEEVILS. FAMILY CURCULIONID^. 



CASK ;};}. 

 180. The Cypress Weevil. 



Endocimus ■manncrhcimii Boh. 



The adults feed on the liark of bald cypres.s twigs, causing their death, and the 

 larvie mine the inner l)ark of injured and recently felled trees. Southern States. 

 ExHiBrr: Adult, larva, work. 



181. The Pales Weevil. 



Ilylohius paleft Hhst. 



The larva" bore into the inner bark of stumps and roots of recently felled, dying, 

 and injured pine. Eastern States. 

 Exhibit; Adults. 



182. The Pitch-Eating Weevil. 



Pachylobius })idvorus Germ. 



Has ha])its similar to the pales weevil. Eastern States. 

 Exhibit: Adults. 



183. The Walnut Weevil. 

 CryplorhyncliKs parochw^ Hbst. 



The larvae mine the inner bark and sapwood of weakened and recentlv dead walnut. 

 Exhibit: Adults, work. 



184. The Fir Weevil. 



Pissodcs dubivx Rand. 



The larvfe mine the inner bark of balsam tir, hastening the death of injured trees. 

 Northeastern State.>^. 



Exhibit: Adults, larvic, work. 



THE ROUND-HEADED BORERS. FAMILY CERAMBYCIDiE. 



cash: .3 1. 

 185. The White-Pine Sawyer. 



Monoltamimis .sriilelldtns Say. 



Larvre mine the inner bark and bore deep into the sapwood of white and silver 

 jiine, hastening the death of dying trees and injuring saw logs. 

 Exhibit: Adults, work. 



186. The Common Pine Sawyer. 



Monohammas rorifiisor Kirby. 



The larvpp mine the inner bark and l)ore large holes into the sapwood of <lying 

 trees and .saw logs of i)ine and spruce. 

 Exhibit: Adults, larva. 



187. The Ponderous Pine-Borer. 



Ergutes ifjticalaliis I^ei-. 



Larvae bore in dead pine logs, injuring them for timber. Northwestern States. 

 Exhibit: Adults, larva, work. 



