38 



225. The Four-Marked Ash. Borer (Mbwria quad rig eminata Say). 

 Larvae invest ash and hickory. 



Exhibit: Adults. 



226. The Cedar Borer (Hylotrupes ligneus Fab.). 



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

 Exhibit: Adults, larvae pupa, work. 



227. The Banded Urographis ( Urographis fasciaius Horn). 



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

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

 States. 



Exhibit: Adults. 



228. The Rustic Borer (Xylotrechns colonus Fab.). 



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

 hickory, maple, and other hard woods. 

 Exhibit: Adults. 



THE FLAT-HEADED BORERS. FAMILY BTJPRESTLDiE. 



CASE 39. 



229. The Bronze Birch Borer (Agrihis an.rius 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 {AgrUus bUineatus Web.). 



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

 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 (MelanophUa fulvoguttata Harr. ). 

 Larvae mine the inner bark of recently dead and injured hemlock in the Eastern 



States. 

 Exhibit: Adults, work. 



232. The Flat-Headed Apple-Tree Borer ( Chrysobothris femorataJPab.). 



The larvae mine the inner bark of recently dead and injured oak, chestnut, hickory, 

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

 Exhibit: Adults, larvae, pupae, work. 



CASE 4.O. 



233. The Flat-Headed Pine Bark-Borer (Chrysobothris dentipes Germ.). 

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



Exhibit: Adults. 



234. The Flat-Headed Hickory Borer (Dicerca obscura Fab.). 



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

 trees. 

 Exhibit: Adults. 



235. The "Western Hemlock Bark-Borer (MelanophUa drummondi Kirby). 

 The larvae mine the inner bark of dead and healthy hemlock and Douglas spruce, 



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

 Exhibit: Adults, larva, pupa, work. 



