iv CONTENTS. 



F^ A R T II. 



THE INSECT WORLD. 

 CHAPTER I. 



PAGE 



General Classification 52 



CHAPTER IT. 

 The Thysanura 55 



CHAPTER III. 



The Neuropteka and Pseudo-Neuroi'teka . . 58 



Order Ephemeroptera ' 59 



Order Odonata 60 



Order Plecoptera 63 



Order Platyptera 64 



Order Neuroptera 72 



CHAPTER IV. 

 The Orthoptera 79 



CHAPTER V. 

 The Hemjptera, or Bugs lob 



CHAPTER VI. 

 The Coleoptera, or Beetles 164 



CHAPTER VII. 

 The Lepidoptera 240 



CHAPTER VIII. 

 The Diptera, or Flies 327 



CHAPTER IX. 

 The Hymenoptera 37o 



