CONTENTS. 



CHAl'TER PAGE 



Preface -------- iii 



Introduction ------- v 



List of Plates ------- x 



I. Life-History of the Blow-Fly - . - - i 

 IL 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 - - - - • S^ 



„ 7. The Nervous System - - - - - 62 



„ 8. The Sensory Organs and Peripheral Nerve Terminations 71 



,, g. The Imaginal Discs - - - - - 72 



„ 10. The Coelom, Dorsal Vessel and Splanchnic System of 



Nerves - - - - - - ■ ^5 



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 - - - - - ii7 



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



