40 



245. The Chestnut Tiraber Worm {Lymcrylon sericeum Harr. ). 



Tlie larvic excavate extensive galleries in the heartwood and sapwood of living and 

 dead chestnut and oak. 

 Exhibit: Adult, work. 



THE CARPENTER WORMS. ORDER LEPIDOPTERA. FAMILY 



COSSIDiE. 



246. The Leopard Moth {Zettzera pyrina Fab.). 



An introduced species very injurious to forest, shade, and orchai-d trees in the 

 vicinity of New York City. 



Exhibit: Adults, larvpe, pupa, work. 



247. The Oak Carpenter Worm {Prionoxystus rohinix Peck). 



The larv;i3 mine in living oak and locust and are sometimes very destructive, esi)e- 

 cially to aged trees. 

 Exhibit: Adults, work. 



248. The Poplar Carpenter Worm (Cossm.s cmtereiisix Lint.). 

 The larvpe mine in trunks of jioplar. 



Exhibit: Adults. 



THE HORNTAILS OR WOOD WASPS. FAMILY UROCERLD^. 



C^SE 43. 



249. The Pigeon Tremex ( Tremex columha Linn.). 



Larvae mine the sapwood of hickory, oak, poplar, maple, and other deciduous forest 

 trees, hastening the death of those weakened liy other causes. 

 Exhibit: Adults, work. 



250. The Pale Tremex ( Tremex sericeus Say). 

 Habits like the pigeon tremex. 



Exhibit: Adults. 



251. The White-Horned Horntail ( Vrocemis aUncomis Fabr. ). 

 Attacks spruce, hemlock, and fir. 



Exhibit: Adults, larva, pupa, work. 



252. The Blue Horntail {Pmirurns cyancns Fab.). 

 Attacks spruce and fir. 



Exhibit: Adult. 



253. The Banded Horntail {Urocerus ahdorninalis Harris). 

 Attacks spruce. 



Exhibit: Adults. 



254. The Yellow- Winged Horntail {Urocerus flavipennis Kirby). 

 Attacks spruce. 



Exhibit: Adults. 



255. The Small-Pine Horntail {Pauriirns pinicola Ashm.). 

 Larvte in pine. 



Exhibit: Adults. 



256. The Black-Pine Horntail (Paururus hopHnsi Ashm.). 

 Larva) in pine. 



Exhibit: Adults. 



