CONTENTS. 



CHAPTER PAGE 



PREFACE in 



INTRODUCTION v 



LIST OF PLATES x 



I. LlFE-HlSTORY OF THE BLOW-FLY I 



II. AN INTRODUCTION TO THE STUDY OF THE ANATOMY AND 



MORPHOLOGY OF INSECTS 7 



III. ON THE GENERAL CHARACTERS OF THE DIPTERA AND ITS 



SUBDIVISIONS, WITH A DESCRIPTION OF THE TYPE-FORM 



'CALLIPHORA ERYTHROCEPHALA' - 25 



IV. THE LARVA OF THE BLOW-FLY - - 32 



SEC. I. External Form and Segmentation - 32 



2. The Integument 35 



3. The Head and Mouth Armatuie - - 37 



4. The Respiratory Organs - 47 



,, 5. The Cutaneous Muscles 50 



6. The Alimentary Canal 51 



7. The Nervous System - 62 



8. The Sensory Organs and Peripheral Nerve Terminations 71 



,, 9. The Imaginal Discs - 72 

 10. The Coelom, Dorsal Vessel and Splanchnic System of 



Nerves - - 85 



APPENDIX TO CHAPTER IV. Methods of Study - 93 



V. THE INTEGUMENTAL SKELETON OF THE IMAGO - 99 



SEC. I. General Characters of the Exo-skeleton in Insects - 99 



2. The Head Capsule - 106 



a. General Morphology - - 106 



I). On the Nomenclature of the Sutures and Sclerites of 



the Head Capsule - - 117 



c. The Head Capsule of the Blow-Fly - - 119 



/ S 



