92 
179. The Hickory Twig Girdler. 
Oncideres cingulata Say. 
The adult girdles the twigs of oak, hickory, persimmon, and other trees, sometimes 
so extensively as to cause serious injury. 
Exuisir: Adults, work, figure. 
INJURING THE INNER BARK AND SAPWOOD. 
THE BARK WEEVILS. FAMILY CURCULIONIDZ. 
CASE 33. 
180. The Cypress Weevil. 
Eudocimus mannerheimii Boh. 
The adults feed on the bark of bald cypress twigs, causing their death, and the 
larvee mine the inner bark of injured and recently felled trees. Southern States. 
Exursit: Adult, larva, work. 
181. The Pales Weevil. 
Hylobius pales Hbst. 
The larvee bore into the inner bark of stumps and roots of recently felled, dying, 
and injured pine. Eastern States. 
ExuHisit: Adults. 
182. The Pitch-Eating Weevil. 
Pachylobius picivorus Germ. 
Has habits similar to the pales weevil. Eastern States. 
Exuisit: Adults. 
; 183. The Walnut Weevil. 
Cryptorhynchus parochus Hbst. 
The larvee mine the inner bark and sapwood of weakened and recently dead walnut. 
Exuisit: Adults, work. 
~ 184. The Fir Weevil. 
Pissodes dubius Rand. 
The larve mine the inner bark of balsam fir, hastening the death of injured trees. 
Northeastern States. 
Exursit: Adults, larve, work. 
THE ROUND-HEADED BORERS. FAMILY CERAMBYCID. 
CASH, 3424: 
185. The White-Pine Sawyer. 
Monohammus scutellatus Say. 
Larvee mine the inner bark and bore deep into the sapwood of white and silver 
pine, hastening the death of dying trees and injuring saw logs. 
Exuisir: Adults, work. 
186. The Common Pine Sawyer. 
Monohammus confusor Kirby. 
The larvee mine the inner bark and bore large holes into the sapwood of dying 
trees and saw logs of pine and spruce. 
Exuisit: Adults, larva. 
187. The Ponderous Pine-Borer. 
Ergates spiculatus Lee. 
Larve bore in dead pine logs, injuring them for timber. Northwestern States. 
Exuisit: Adults, larva, work. 
