1911 ENTOMOLOGICAL SOCIETY. 37 



Mr. Caesar : I have been looking for it wherever I have gone, and only found 

 it in Port Hope. 



Dr. Walker : I have seen it at Nipigoii, on the north shore of Lake Superior, 

 confined to a single tree, and had to hunt a good deal to find as many as eight or 

 ten specimens. I took it to be C. pinifoliw, but may be mistaken. I think it was 

 also this species that was sent to me from Snelgrove. I have found C. similis only 

 on Wliite and Black Spruce, never on Norway. 



Mr. Jarvis : There is a species very common in the far west ; it is about half 

 nil inch in length. Do 3^ou know that one? 



Dr. Hewitt : I have collected that same one all through Saskatchewan, 

 Alberta and British Columbia this fall. It seems to be a more compact and more 

 regular species. I have got here about six different species of Chermes. The box 

 has been arranged for me by Miss Patch. I find that floccus and similis are far 

 more common than heretofore supposed. Floccus, I think, occurred in Quebec this 

 year, too. 



Mr. Caesar : We have not found C. floccus in Ontario yet. 



THE MORE INJURIOUS INSECTS IN CANADA DURING THE YEAR 



1910. 



C. Gordon Hew^itt, D.Sc, DoMiNicyN Entomologist, Ottawa. 



As reference has already been made by the directors of the various districts in 

 eastern Canada, and by Mr. Caesar, to those insects which have been brought to 

 their notice as being more or less prevalent and injurious, it remains for me to 

 briefly mention those insects which have occurred in other parts of Canada, or whose 

 injuries have been more than usually serious. 



In the northern districts of Saskatchewan considerable damage has been caused 

 by the Red-backed Cutworm (Paragrotis oclirogaster, Gn.), the injuries being 

 chiefly to wheat. Another cereal pest, especially upon oats, which seems to be 

 spreading is a species of Thrips. Oats which had been injured by this insect were 

 received from Quebec, Saskatchewan, Alberta and British Columbia. It produces 

 a characteristic whitened appearance of the ears. 



The Western Blister Beetle {Cantliaris nuttalli, Say) was very abundant 

 in the western provinces of Manitoba, Saskatchewan and Alberta, where it was re- 

 ported as injuring chiefly peas. 



The Potato Beetle (Lepfdnotarsa decemlineata, Say) is gradually working 

 its way north in Alberta, its northern limit at present being somewhere in the neigh- 

 borhood of Edmonton. 



The Hop Flea-beetle (Psylliodes punctulata, Melsh.) was again serious in 

 British Columbia, but on some of the ranches the Red Spider was a much more 

 serious pest. The manager of one hop yard stated that it was compelling them to 

 cease growing hops. In one locality, where a crop of six or seven hundred pounds 

 of hops to the acre is usually produced, they were reduced to two hundred pounds 

 to the acre by the ravages of the spider, and the resulting hops were of very poor 

 quality. The destruction of the mite wintering in the hop poles would appear to be 

 the best method of controlling it, as they were found there in large numbers. This 

 can be accomplished by dipping the poles in a caustic solution, such as lye, or in 

 coal oil. 



