1916 



ENTOMOLOGICAL SOCIETY. 



129 



Natural Enemies. Syrphus fly larvae and coccinellid larvte have been ob- 

 served feeding upon the pupae in the galls, but not in sufficiently large numbers to 

 produce any appreciable effects. 



The President : We are very pleased to have this account of Mr. Chrystal's 

 work from himself for the benefit of those who are here and who may know when 

 l say that Stanley Park, in which Mr Chrystal is working, is one of our finest 

 pieces of natural woodland in the whole Dominion, and is known to all foresters in 

 Canada; but unfortunately, owing chiefly to the depredations of certain species of 

 insects, its beauty is fast passing away. When I visited the Park last summer I 

 was abhorred to find the enormous destruction which has been caused in a few 

 years by various species upon which Mr. Chrystal has been working. They really 

 are the reason of Mr. Chrystal's presence in Stanley Park. There are whole areas 



Stem mother from Douglas fir. 



Stem mother, from spruce. 



of hemlock there which are absolutely dead, places which Mr. Chrystal has named 

 '■ the graveyard.'' I had with me Mr. James Wliite, the Assistant Chairman of 

 the Commission of Conservation, and we were able to demonstrate to him the 

 enormous destruction of these trees by insect pests. I fear the time has nearly 

 come when Stanley Park may no longer be considered Canada's most beautiful 

 natural park. This paper is now open for discussion and perhaps Mr. Macoun, 

 the Dominion Horticulturist, who is with us this morning, might have some 

 remarks to make in regard to this paper. 



Mr. Macoun : I am afraid I have not much to add to what you have said. 

 Dr. Hewitt. Stanley Park is one of the sights of Canada and certainly every- 

 thing possible should be done to preserve it. 



Prof. Caesar: I w^ould like to ask if this species is native to North America 

 and also whether Mr. Chrystal has yet in mind any plan of a practical means of 

 control. 



