Family V. _Hesperiidae_, the Skippers 318 Subfamily _Pyrrhopyginae_ 319 Subfamily _Hesperiinae_, the Hesperids 320 Subfamily _Pamphilinae_ 339 Subfamily _Megathyminae_, genus Megathymus 367 DIGRESSIONS AND QUOTATIONS PAGE Immortality (Sigourney) 57 Hugo's "Flower to Butterfly" (Translated by Eugene Field) 74 Superstitions (Frank Cowan) 90 Luther's Saddest Experience (Yale Literary Magazine, 1852) 100 A Race after a Butterfly 127 Suspicious Conduct 136 Collecting in Japan 149 Faunal Regions 161 Widely Distributed Butterflies 171 The Butterflies' Fad (Ella Wheeler Wilcox) 186 Fossil Insects 195 In the Face of the Cold 224 Uncle Jotham's Boarder (Annie Trumbull Slosson) 233 Mimicry 235 The Utility of Entomology 256 Size 271 Instinct 280 Red Rain (Frank Cowan) 299 For a Design of a Butterfly Resting on a Skull (Mrs. Hemans) 303 The Caterpillar and the Ant (Allan Ramsay) 316 Collections and Collectors 337 Exchanges 344 LIST OF ILLUSTRATIONS IN TEXT