1910J The Ottawa Naturalist. 167 



THE ENTOMOLOGICAL SOCIETY OF ONTARIO. 



The forty-seventh annual meeting of the Entomological 

 Society of Ontario was held at the Ontario Agricultural College, 

 Guelph, on November 3rd and 4th. 



The important address of the meeting was delivered by 

 Prof. J. G. Needham, of Cornell University, on "The Role of 

 Insects in Water Life." No one is more fitted for a discussion of 

 such a subject than the eminent investigator from that great 

 seat of learning at Ithaca. For many years Prof. Needham has 

 made a close study of aquatic insects and his work on certain of 

 the groups is unique. After some introductory remarks on the 

 existing relations between animal and plant life in our waters, 

 he discussed the exceeding great importance of a thorough 

 knowledge of the life habits of aquatic insects in its direct rela- 

 tionship to fish culture. Much information was given on the 

 value of insects as food for young fish. He pointed out how 

 certain species could be reared very easily in large numbers. 

 The waters of Canada and the United States were as productive 

 acre to acre as the land. Large areas of water which at present 

 are practically worthless from an economic point of view, could 

 by scientific water farming be made of greater value than the 

 best of land farms. Beautiful lantern slides were shown which 

 illustrated the life-histories of certain species of dragon flies, 

 stone flies, may flies, etc. At the conclusion of the address Prof. 

 C. C. James, Deputy Minister of Agriculture for Ontario, spoke 

 briefly of the importance of the subject, as did also President 

 Creelman, of the O.A.C. 



During the afternoon of the first day's session, papers on 

 economic entomology were presented by Messrs. Gibson, 

 Williams, Morris and Treherne, dealing with the injurious insects 

 which were complained of in their respective districts. In 

 addition to these papers Mr. L. Caesar spoke of the "Insects 

 of the Year in Ontario," and Dr. Hewitt on "The More Injurious 

 Insects in Canada during the Year 1910." 



In the other sessions the following papers were read or 

 presented by title: "Leaf-eating Beetles," by F. J. A. Morris, 

 Port Hope; "The Pool" and "Notes on the Season of 1910," 

 by Rev. Dr. T. W. Fyles, Hull, Que.; "Collecting in the White 

 Mountains," by H. H. Lyman, Montreal; "Spread of Diseases 

 Amongst Animals and Man by Acarids," by T. D. Jarvis, 

 Guelph; "The Horse-radish Flea Beetle," by A. F. Winn, 

 Montreal; "Further Notes on Basswood Insects" and "The 

 "Entomological Record for 1910," by Arthur Gibson, Ottawa; 

 "The Migration of Some Native Locusts," by Norman Criddle, 

 Treesbank, Man.; "Some Observations on the Practical Import- 



