CONTENTS 



Page. 



Introduction 77 



History 77 



Origin and distribution 79 



Food plants and destructi veness 79 



Character of injury .* 79 



Description 80 



Egg 80 



Larva 81 



Cocoon 83 



Pupa * So 



Adult 84 



Seasonal history 85 



Number of generations 85 



Life cycle 85 



Habits 86 



Identity 87 



Natural enemies 87 



Remedies 87 



Bibliography 88 



ILLUSTRATIONS 



Page. 

 Fici. 12. The grape-leaf skeietonizer (//rtrrwana americana) : Young larvpe feed- 



nig on leaf 80 



13. The grape-leaf skeletonizer {Harrisana americana): Egg, greatly en- 



larged ; eggs on leaf - 81 



14. The grape-leaf skeletonizer {Harrisana americana): Larva and details. 82 



15. The grape-leaf skeletonizer ( Harrisana americana): Cocoon 83 



16. The grape-leaf skeletonizer (//arr/.s«?irf americana): Pupa 83 



17. The grape-leaf skeletonizer {Harrisana americana): Male moth 84 



11 



