vin CONTENTS 



XIX A CONDENSED LIST OF INJURIOUS INSECTS... 151 



XX INSECT ENEMIES OF PRINCIPAL CROPS 157 



XXI HOME PROBLEMS ON CROP PESTS 174 



PART IV. COLLECTING, PRESERVING 

 AND REARING INSECTS 



XXII COLLECTING 177 



XXIII PRESERVING 185 



XXIV REARING AND RECORD-KEEPING 198 



XXV AIDS 205 



LESSONS 



1. External structure 13 



2. Internal structure 21 



3. Grasshoppers and their allies 41 



4. Dragonflies and damselfiies 54 



5. Mayflies 64 



6. Bugs 70 



7. Caddisflies 80 



8. Lace-wing, ant-lion and orl-fly 88 



9. Beetles 95 



10. Butterflies and moths 110 



11. Two-winged flies 119 



12. Hymenoptera 125 



13. Other orders of insects 134 



14. Insect injuries and their control 160 



15. Wormy apples 163 



16. Seasonal history of an injurious insect 172 



17. Preparing specimens of insects 194 



18. Getting equipment ready 195 



