(55) 



STIiUCTUEE, DEVELOPMENT, AND BIONOMICS OF HOUSE-ELY. 495 



The Structure, Development, and Bionomics of 

 the House-fly, Musca domestica, Linn. 



Part II. The Breeding Habits, Development, and the Anatomy 



of the Larva, 



. Gordon Hewitt, JU.Sc., 



Lecturer in Economic Zoology, University of Manchester. 



With Plates 3033. 



CONTENTS. 



PAGE 



I. Introduction . . . . . . 496 (56) 



II. Breeding Habits . . . .497 (57) 



III. Factors and Rate of Development . . .500 (60) 



IV. Development : 



1. Copulation . . . .505 (65) 



2. Egg . . . . 506 (66) 



3. Larva . . . . .506 (66) 



4. Pupa . . . . .508 (68) 

 V. Anatomy of the Larva : 



1. External Structure ." . . 510(70) 



2. Muscular System . . . .513 (73) 



3. Nervous System . . . .519 (79) 



4. Alimentary System . . .523 (83) 



5. Respiratory System . . .528 (88) 



6. Vascular System and Body Cavity . . 530 (90) 



7. Imaginal Discs . . . .532 (92) 

 VI. Summary . . . . .535 (95) 



VII. Literature . . . . .538 (98) 



VOL. 52, PAKT 4. NEW SERIES. 38 



