CONTENTS 



PAGE 



INTRODUCTION ....... i 



Collecting and Preserving Insects ... 9 

 The Control of Injurious" Insects ... 27 



CHIEFLY ABOUT SPIDERS ..... 32 



INSECTS ........ 39 



The Most Primitive Insects .... 39 



Plectoptera ....... 40 



Odonata . . . . . . . 42 



Plecoptera ....... 5 



Megaloptera ...... 52 



Neuroptera ....... 53 



Mecoptera ....... 56 



Trichoptera . . . . . . 57 



Dermaptera . . . . . .61 



Orthoptera ....... 62 



Isoptera ....... 76 



Corrodentia ...... 76 



Mallophaga . . . . . . .78 



Siphunculata ...... 78 



Thysanoptera ...... 79 



Homoptera ....... 80 



Heteroptera ...... 95 



Lepidoptera . . . . . .115 



Diptera ....... 229 



Suctoria ....... 279 



Coleoptera . . . . . . .280 



Strepsiptera ...... 405 



Hymenoptera ...... 406 



Galls ........ 455 



INDEX : 



Habitat and Plant . . . . -475 



Entomological ... . 479 



v 



