THE CANADIAN ENTOMOLOGIST. 168 



species, judging from Ratzburg's excellent figures. The larva is found to 

 attack also various imported conifers ; for this reason I supposed it might 

 be an imported parasite. It has been noticed on the Scotch, Austrian 

 and Russian Pine, and it will be found, I fear, a grave enemy to the 

 cultivation of this genus of plants. 



Since the insect is not noticed yet in any scientific publication, I pro- 

 pose to name it Nephopteryx (Diorydria) Zinutierma/ii, after Charles D. 

 Zimmerman, of Buffalo, who has made many excellent observations on 

 our noxious insects, and to whom I am greatly indebted for help in getting 

 the present facts with delation to the species. He has kindly spent much 

 time in climbing large trees and cutting out pupa and larv» and rearing 

 the perfect insect. 



The larva of abietella is described by Ratzburg as living in the cones 

 chiefly of various species of Finns. Nevertheless, he speaks of one 

 instance in which it is found under similar circumstances to those which 

 are usual with Zimmcnno)ii-\\\\\c\\ latter I have not yet noticed attacking 

 the fruit. The European species is said to winter in pupa state. In the 

 vicinity of Buffalo our species seems to be single bro-oded. I have not 

 yet ascertained the winter state. Ratzburg recommends cutting off 

 infested branches, but especially on small trees. I find the larva of Zim- 

 mermani usually infesting the main stem at the insertion of the branches. 

 From the fact that the pitch of the trees ofter a protection, I do not think 

 that any washes would reach the insect. The knife, then, seems the only 

 remedy. 



Our species has a natural enemy in a small hymenopterous parasite 

 with which I have found certain of the chrysalids to be filled. 



ON THE HABITS OF AMBLYCHILA CYLINDRIFORMIS. 



BY S. W. WILLISTON, NEW HAVEN, CONN. 



The great interest in which this beetle has been held by Entomolo- 

 gists for so long has rendered an accurate account of its habits very 

 desirable ; but for a very long period — over twenty years — it has 

 singularly eluded more experienced observers. In the Proceedings of the 



