CONTENTS. 



Page. 



Introductory 9 



Occurrence , . 9 



Life history 12 



Classification 13 



General characters 13 



Synopsis of the groups 15 



Sarcophagidse 15 



Calliphorinae 20 



Muscinae 22 



Muscina group 25 



Homalomyia group 28 



Anthomyiidse ; 29 



Trypetidse 30 



Ortalidae 34 



Sepsidse 35 



Drosophilidse 35 



The cephalopharyngeal skeleton 36 



Bearing of larvae on classification , 37 



Bibliography 38 



Index 39 



5 



