96 



219. The Destructive Spruce Wood-Borer. 



Tetropium cinnaviopteruiii. Kii'l)y. 



Larv.'i^ mine jjiroeii J)ark and wood of injured and dying spruce, hastening death 

 and pronioting decay. 



Exhibit: Adults, larv;e, work. 



220. The Wavy Spruce Borer. 



Xylotrechus undnlatus 8ay. 



Larva; mine tlie inner liark and sapwood of JJouglas sprut'e, fir, and hemlock. 

 Exhibit: Adults. 



221. The Canadian Leptura. 



Leptura adiadfusis Fal). 



Larva' mine sapwood of dead spruce and hendock, inducing rapid decay. 

 Exhibit: Adults. 



222. The Red-Headed Clytus. 



Neoclytus eryiJirocejihalus Fab. 



Larvfe mine in dead and dying bark and sapwood of a great variety of forest trees, 

 maple, ash, hickory, sweet gum, bald cypress, etc. 

 Exhibit: Adults. 



223. The Ribbed Pine Borer. 



Rhagium Uneatnm 01. 



Larva; minetlie inner bark of dying and dead pine, spruce, and some other conifers. 

 Exhibit: Adults, larvse, pupa, work. 



224. The Black-Horned Pine Borer. 



Callidmm antennalum Newm. 



Larvpe mine inner l)ark and wood of dying and dead pine, cedar, etc. 

 Exhibit: Adults, work. 



225. The Four-Marked Ash Borer. 



EJiurlu qnadrigcmhmtu Say. 



Larvfe infest ash and hickory. 

 Exhibit: Adults. 



226. The Cedar Borer. 



Hylotrupes ligneuft Fab. 



Larva; mine inner bark and sapwood of white cedar, causing the death of the trees. 

 Exhibit: Adults, larv;c, pupa, work. 



227. The Banded Urographis. 



Urographix Jasridtiix Horn. 



The larva; mine the inner ))ai k of dead (lak, majile, chestnut, sweet gum, hickory, 

 walnut, sourwood, dogwood, and probably nearly all deciduous trees. Eastern 

 vStates. 



Exhibit: Adults. 



228. The Rustic Borer. 

 Xylotreclnis colomtf Fab. 



Larva; mine the inner bark and sapwood of recently cut or dying oak, chestnut, 

 hickory, maple, and other hard woods. 

 Exhibit; Adults. 



