CONTENTS 



PAOB 



Explanation of Plates vii 



I. Butterflies in disguise ; a study of mimicry 1 

 II. The struggle for existence in the genus 



Basilarchia 22 



III. Deceptive devices among caterpillars . 38 



IV. Butterflies as botanists .... 47 

 V. The names of butterflies . . . .56 



VI. Color-relations of chrysalids to their sur- 

 roundings . . . . o . . 63 

 VII. The White Mountains of New Hampshire 



AS A home for butterflies . . .71 



VIII. Butterfly sounds 88 



IX. Nests and other structures made by cat- 

 erpillars 100 



X. Postures of butterflies at rest and asleep 108 

 XI. The eggs of butterflies .... 114 

 XII. Psychological peculiarities in our butter- 

 flies 120 



XIII. Social caterpillars 127 



XIV. The fixity of habit in butterflies . o 135 

 XV. How butterflies pass the winter . . 139 



XVI. The oldest butterfly inhabitants of New 



England 145 



XVII. Protective coloring in caterpillars . 154 



XVIII. Aromatic butterflies . . o , . . 163 



XIX. The procession of the seasons . . . 178 



