CONTENTS. 



CHAPTER PAGE 



I. Terms Denoting Position and Direction of Parts. . i 



II. The External Anatomy of a Locust, Melanoplus femur- 



rubrum 8 



III. The Internal Anatomy of an Insect, Corydalis comuta 28 



IV. The External Anatomy of a Beetle, Pterostichus cali- 



fomicus 46 



V. The External Anatomy of a Butterfly, Anosia 



plexippus 57 



VI. Specialized Mouth-parts of Insects 67 



VII. The Venation of the Wings of Insects 7$ 



Index and Glossary 93 



iv 



