CONTENTS. 



CHAPTIB. PA8M. 



I. General Characteristics of Insects, - 5 



II. Injurious IIymenoptera, ..... 8 



III. Injurious Lepidoptera, ..... 12 



IV. Injurious Diptera, 37 



V. Injurious Coleoptera, 42 



VI. Injurious Hemiptera, ------ 55 



VII. Injurious Orthoptera, ..... 72 



VI II. Kerosene Emulsions, ------ 75 



IX. How to Collect and Mount Insects, - 77 



X. A List op the Insects Arranged According to 



the Plants They Infest, .... 82 



XI. \ Key to the Orders of Insects, - - - 84 



