INTRODUCTORY. 



The following primary Report on some of the noxious insects of Canada has been 

 prepared on behalf of the Entomological Society, for the Agricultural and Arts, and the 

 Fruit Growers' Associations of Ontario. 



In order to render this Report, and those that may follow it in future years, as 

 valuable as possible, it has been deemed advisable to take up a few special fruits, vege- 

 tables or crops, and give a complete account of the insects affecting them, rather than to 

 treat of a larger number in a less elaborate manner. The following pages include reports 

 on insects affecting (1) the Apple, by the Rev, C. J . S. Bethune ; (2) the Grape, by Mr. 

 W. Saunders ; (3) the Plum, by Mr. E. B. Reed; each writer is responsible only for the 

 statements contained in his own portion of the work. It is intended to treat of, next, 

 the insects injurious to the wheat, potato, hop, and pea crops, the strawberry, currant 

 and gooseberry, cucumber and squash, and cabbage; and so to go on, if the work is 

 continued and Providence permit, till the farmers, gardeners and fruit growers of this 

 country are fully informed respecting the habits of their insect friends and foes, and the 

 best modes of dealing with them. 



As mere descriptions of insects are seldom intelligible to the general non-scientific 

 reader, special pains have been taken to present an illustration of almost every insect 

 referred to in the following Report ; and everyone will, no doubt, at once admit that any 

 little value these pages may have, is greatly enhanced by the excellent wood-cuts that 

 embellish them. Special thanks are due, and are hereby gratefully tendered, to the 

 Honorable George Brown, for his kind loan of many beautiful illustrations from the 

 Canada Farmer, and to Mr. C. V. Riley, the accomplished State Entomologist of Missouri, 

 for permission to obtain electrotypes of many of his admirable drawings, which are certainly 

 the best figures of the kind as yet produced in America. An acknowledgment also must 

 by no means be omitted of the excellent wood-cuts specially produced for these pages by 

 Mr. Beale, a rising artist of London, Ontario, and a member of the Entomological 

 Society. 



As these Reports have been prepared by persons who are much engaged in other 

 occupations, and who only devote to the study of Entomology what little leisure they 

 may be able to obtain, it is trusted that due indulgence will be accorded for any imper- 

 fections or omissions that may be apparent to the reader. 



C. J. S. B. 



Trinity College School, Port Hope, 

 December 12th, 1870. 



