UNITED STATES DEPARTMENT OF AGRICULTURE 

 BULLETIN No. 491 



Contribution from Bureau of Entomology 

 L. O. HOWARD, Chief 



Washington. D. C. 



PROFESSIONAL PAPER 



June 30, 1917 



THE MELON FLY IN HAWAII 



By 



E. A. BACK, Entomologist, and C. E. PEMBERTON, 



Scientific Assistant, Mediterranean and other 

 Fruit Fly Investigations 



CONTENTS 



Page 



Introduction 1 



Origin 2 



Distribution '. . 3 



Source of Hawaiian Infestation .... 4 



Early History in Hawaii 4 



Literature • 5 



Economic Importance . 7 



Injury 8 



Page 



Food Plants 12 



Life History and Habits . 18 



Length of Life Cycle 43 



Seasonal History 44 



Method of Spread 44 



Control Measures 45 



Summary 55 



Bibliography 57 



