97 



THE FLAT-HEADED BORERS. FAMILY BXJPRESTID^. 



CASE 39. 

 229. The Bronze Bircli Borer. 



Ag villi s anxkis Gory. 



The larvte mine the inner bark of Uving and injured birch, aspen, and cottonwood. 

 Very destructive in the Northern States. 

 E.vhibxt: Adults, work. 



230. The Two-Lined Chestnut Borer. 

 Agrilut^ b'dineatus Web. 



The slender larva^^ mine the inner Imrk of recently dead, injured, and healthy 

 chestnut and oak. One of the i)rincipal causes for the \vh(jle.sale destruction of 

 chestnut in the Southern States. 



E.xhibit: Adults, work. 



231. The Eastern Hemlock Bark-Borer. 



Melanopliila fulvogvltata Harr. 



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

 States. 



Exhibit: Adults, work. 



232. The Flat-Headed Apple-Tree Borer. 



Chri/sobothris femorata Fab. 



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

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

 Exhibit: Adults, larvie, pupa", work. 



C.A.SE to. 



233. The Flat-Headed Pine Bark-Borer. 



Chrysohodirls denlipes Germ. 



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

 Exhibit: Adults. 



234. The Flat-Headed Hickory Borer. 



Dicercd nlisciir<t Fab. 



Larvifi bore into the trunk and limbs of hickory, majile, and some other deciduous 

 trees. 



Exhibit: Adults. 



235. The Western Hemlock Bark-Borer. 



Melanopliila ilniiiiuiondl Kirby. 



The larvfe mine the inner bark of dead and healthy western hemlock and Doughus 

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

 Exhibit: Adults, larva, pupa, work. 



INJURING THE WOOD. 



THE FLAT-HEADED BORERS. FAMILY BUPRESTIDiE. 



236. The Turpentine Borer. 



Bup'restis apricans Hbst. 



The larvfe bore into the solid resinous heartwood of longleaf pine after "boxing" 

 by turpentine workers, so weakening the trunk as to cause it to break and spoiUng 

 porti(jns of it for lumber. 

 - Exhibit: Adult, work. 



25916— No. 53—05 7 



