INSECT ENEMIES OF WESTERN FORESTS 



45 



Figure 17. — The Douglas-fir twig weevil (Cylindrocopturus furnissi) : A, 

 Infested terminal shoot of Douglas-fir; B, larva, greatly enlarged; C, 

 adult, X 6. 



Species of Cylindrocopturus 



Hosts and distribution 



dehiscens (Fall) Monterey and Bishop pines. California. 



deleoni Buch Lodgepole pine. Idaho, Montana, and Wyoming. 



