25G 



THE CANADIAN ENTOMOLOGIST 



would complicate matters considerably and Jiiake the chart difficult 

 tj follow. As it stands, one^can obtain a general idea as to what 



couoi>;£iu.3ioe sfecxj^ 



ill. 0?H£.=1 0.=3iiRS.5I6 S?iiCl£3 



Fig. 9. 



the insects l)elonging to each order are doing. It is a noteworthy 

 fact that almost one half of the species of insects, which wc have 

 in our midst, arc engaged in useful activities. 



Mailed July 12th, 11)16. 



