35 



THE ROUND-HEADED BORERS. FAMILY CERAMBYCIDiE. 



C'-^VSiC 3-1. 



185. The White-Pine Sa^ffyer {}fo)iohammus sciUelladin i^ay). 



l«irv;i' iiiiiif the imur liark and l)nre (U'l-p into the sapwood of whiU; and silver 

 pint", liasti'nin^' the ik-atii of dyin;; tret'H and injnring saw logs. 

 Kx II I hit: Adult.«, work. 



186. The Common Pine Sawyer (Monohammus cunfusur Kirby). 



Tlu" larva> mine the inner bark and bore large holes into the sapwood of dying 

 trees and Siiw logs of i)ine and spruee. 

 Exhiiut: Adults, larva. 



187. The Ponderous Pine-Borer (Eryutcti apicidatus Ia^c). 



Larvje bore in dea<l pine logs, injuring them for timber. Northwestern States. 

 Kxiiiiut: Adults, larva, work. 



188. The Knob-Horned 'Pine-'BoTer (AranllioclmiK nodusuH F&h.). 

 The larva' mine the inner bark of pine stumps and large logs. 

 ExHiHir: Adults. 



189. The Obsolete Pine-Borer (.l(v(»//wr//((/.s o/wo/dc.s' Oliv.). 

 The larva- mine the inner bark of freshly killed pine. 

 Exiiihit: Adults. 



190. The Small Pine "Barls.-'BoTeT (Ceratographis pnsiUuK Kirhy). 

 Larvte mine the inner bark of dead and dying pine. 



HxniBiT: Adults. 



191. The Lesser Pine Borer {Asemum moestum Hald.). 



Larvie l)ore into sapwood of dead pine and spruce logs and stumps. Eastern 

 States. 



Exhibit: Adults. 



CA^SE 35. 



192. The Poplar Borer {Saperda calcaraia Say). 



Larv;e bore in trunks of living poplar, Cottonwood, and willow, causing great 

 destruction to these trees. 

 Exiiihit: Adult.'J, work. 



193. The Common Elm-Tree Borer [Snperda tridcnintn Oliv. ). 



The larvii' iiiiiie tlic bark and sapwood of dead, dying, and healthy elm, often 

 causing great destruction. 

 Exiiihit: Adults, work. 



194. The Poplar Girdler {Saperdn concolor Lee). 



l^iirva' mine in green bark of poplar saplings, girdling the trunks and causing 

 large swellings; also attack willow. 

 Exiiihit: A<lults, work. 



195. The Sugar Maple Borer { J'lafjifnwhin sprrioH)!!^ !^ay). 



Lar\.i' mine the iiuicr bark and sapwoo<l of recently dead, dying, and living 

 maple, often causing the dcatli of weakened trees. 

 Exiiihit: Adults. 



196. The Locust Borer (Ci/llcnr rohiiii.r Forst.). 



Larva- mine the woo<l and bark of living l)laik locust, causing great ilamage and 

 destruction. 



Exhibit: Adults, work. 



