CONTENTS 



CHAPTER I 



PAGE 



THE GRASSHOPPER AND ITS ALLIES. . . ' . . . . 1 

 Key to the four principal families of Acrididae .... 2 



APPENDIX : Key to the principal families of the Orthoptera . 14 



CHAPTER II 



THE BUTTERFLY AND ITS ALLIES . iv . ".- . . . 15 



APPENDICES : Key to the principal families of Lepidoptera . 41 



Key to the principal families of Hymenoptera . . .42 



CHAPTER III 



THE BEETLE AND ITS ALLIES . .... . . .44 



APPENDIX : Key to the principal families of the Coleoptera . 58 



CHAPTER IV 



THE FLY AND ITS ALLIES . . . . .. ... 62 



APPENDIX : Key to the suborders of Diptera . . 62 



CHAPTER V 



LlTHOBIUS AND ITS ALLIES ..... . . . . 74 



APPENDIX : Key to the principal families of the Myriapoda . 78 



Key to the commoner species of the genus Lithobius . . 79 



CHAPTER VI 



THE SPIDER AND ITS ALLIES . . .. . . , . . . 80 



APPENDIX : Key to the seven suborders of the Araneina . . 95 



ix 



