FOREST PROTECTION 



95 





Damage to Populus spp. by Hymenoptera 







Genus 



Species 



Parts 



Suffering 



Literary References 



Family 



For. Bui. 



No. 46 



U.S. 



St. Mus, Mem. 

 No. 8 

 N. Y. 





Tenthredinidse 



Janus ..„. 



integer Nort 



ventrcdis Say. 



Twigs 



68 

 70 



302 

 322 











Damage to Alnus glutinosa by Hymenoptera 



Family 



Tenthredinidae 



Genus 



Kaliosphinga* _ _ 



Species 



dohrnii Tischb.__„ 



Parts 



Suffering 



Leaves. 



Literary References 



Ex. Sta. Bui. 

 No. 233 

 Cornell 



58 



