38 



225. The Four-Marked Ash. Borer {Ehuria qnadrigeminata Say). 

 Larvfe invest a,sh and hickory. 



Exhibit: Adults. 



226. The Cedar Borer {Ilylotrupes Ugneus Fab.). 



Larvae mine inner bark and sapwood of cedar, causing the death of the trees. 

 Exhibit: Adults, larva' pupa, work. 



227. The Banded XJrographis ( Urographis fasciatus Horn). 



The larvae mine the inner bark of dead oak, maple, cliestnut, sweet-gum, hickory, 

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

 States. 



Exhibit: Adults. 



228. The Rustic Borer {Xylotrechus colomis Fab.). 



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

 hickory, maple, and other hard woods. 

 Exhibit: Adults. 



THE FLAT-HEADED BORERS. FAMILY BUPRESTIDiE. 

 C^SE 39. 



229. The Bronze Birch Borer (Agrilus anxius Gory). 



The larvae mine the inner bark of living and injured birch and poplar. Very 

 destructive in the Northern States. 

 Exhibit: Adults, work. 



230. The Two-Lined Chestnut Borer {Agrilus hilineaius Weh.). 



The slender larvae mine the inner bark of recently dead, injured, and liealthy 

 chestnut and oak. One of the principal causes for the wholesale destruction of 

 chestnut in the Southern States. 



Exhibit: Adults, work. 



231. The Eastern Hemlock Bark-Borer {Melanoph'da fulvoguttatd Ilarr. ). 

 Larvae mine the inner l^ark of recently dead and injured hemlock in the Eastern 



States. 



Exhibit: Adults, work. 



232. The Flat-Headed Apple-Tree Borer {f 'JirgsohntJiris femorafa Ffih.). 



The larv;e mine the inner bark of recently dead and injured oak, chestnut, hickory, 

 maple, and some other deciduous forest trees. Eastern States. 

 Exhibit: Adults, larv;e, pupae, work. 



case: 4.O. 



233. The Flat-Headed Pine Bark-Borer {Chri/sohnthris dendpes Germ.). 

 Larvje mine the inner bark of recently dead and dying pine. 



Exhibit: Adults. 



234. The Flat-Headed Hickory Borer {DIcerca ohftcura Ynh.). 



Larvte bore into the trunk and limbs of hickory, maple, and some other deciduous 

 trees. 

 Exhibit: Adults. 



235. The Western Hemlock Bark-Borer (MelnnopMIa drummondl Kirby). 

 The larvic mine the inner bark of dead and healthy liemlock and Douglas spruce, 



causing defects in the lumber and killing trees. Northwestern States. 

 Exhibit: Adults, larva, pupa, work. 



