CONTENTS. 



PART I. 



DEVELOPMENT AND ECOLOGY OF INSECTS. 



CHAPTER. PAGE. 



I. THE CYCLE OF LIFE, 1 



Incomplete Metamorphosis, 1. Complete Metamor- 

 phosis. 2. Molting. -2. The Life of a Grasshopper, 3. 

 The Life of a Butteilly. 13. The Life of a Moth. 24. 



II. THE SPECIAL SENSES, 34 



Value of Sense Organs, 34. The Study of the 

 Special Senses, 35. The Sense of Touch., 36. The 

 Sense of Taste, 30. The Sense of Smell. 37. The Pro- 

 duction of Odors, 39. The Sense of Sight, 40. Sense 

 of Hearing. 43. Production of Sound, 45. 



III. PROTECTIVE DEVICES, 47 



The Hgg's Defense, 47. The Larva. 50. The Pupa, 

 50. The Adult, 50. Sympathetic Coloration, 50 

 Mimicry, 57. 



IV. SOLITARY LIFE, 02 



Social Development, 03. Mud-daubers, 03. Digger 

 Wasps, 00. 



V. SOCIAL LIFE, 73 



The Colony, 73. The Queen, 74. The Drone. 77. 

 The Worker, 77. Swarming, 79. Ants, 81. Wasps, 

 85. 



VI. INSTINCT, . . . . 89 



Actions of the Newly Born, 90. Acts of Mature 

 Life, 91. Acts Associated with Reproduction, 91. 

 Limitations of Instinct, 92. Instinct and Reason, 93. 



(vii) 



