iv INTRODUCTION. 



clearly the need for further help. Por this purpose the many 

 blanks in this book have designedly been given prominence 

 by the author in the hope that many workers will endeavour 

 to fill them up by careful and intelligent study of insect 

 life. The field for future investigation is unlimited. This 

 book is a testimony to the strenuous efforts made during the 

 past three years in this field by Mr. Lefroy, who is the only 

 Entomologist in the Department of Agriculture. It is hoped 

 that in the near future an entomologist may be employed by 

 each important province for the investigation, prevention and 

 cure of crop pests, but this will not lessen the need for other 

 workers, whose assistance will be warmly welcomed by the 

 Government Entomologist. If this help is freely given, I 

 look forward within a few years to the issue of a revised 

 edition of this book, in which still more useful information 

 about insect pests may be given. 



E. G. SLY, 



Officiating Inspector-G eneral 



of Agriculture in India. 

 The 1st May 1906. 



