TABLE OF CONTENTS. 



Vol. I. 



Pagi 



PREFACE vii 



LIST OF ILLUSTRATIONS xxiii 



INTRODUCTION. — I. The General Structure of Butterflies .... 1 



The Egg 2 



The Larva or Caterpillar 8 



The Pupa or Chrysalis 27 



The Imago or Butterfly 30 



II. The Modern Classification op Butterflies historically considered 52 



III. The Physical Features and Faunistic Divisions of New England 75 



The Physical Geography of New England. By W. M. Davis 75 



The Climate of New England. By W. M. Davis 86 



The Zoological Divisions of New England 89 



TV. Studies on the Embryological Development of Euvanessa antiopa. 



By C. W. Woodworth 95 



KEY TO THE FAMILIES OF BUTTERFLIES 105 



FAMILY NYMPHALIDAE 109 



Subfamily Satyrinae 115 



Geuus Oeneis 123 



Excursus I. The White Mountainn of New Hampshire as a Home for Butterflies . . 127 



Oeneis semidea 134 



Oeneis jutta 149 



Genus Cercyonis 156 



Excursus II. The Clothing of Caterpillars 161 



Cercyonis alope 163 



Cercyonis nephele 171 



Genus Eaodia 175 



Excursus III. The General Changes in a Butterfly's Life and Form 178 



Enodia portlandia 180 



.ZU'^lo 



