CONTENTS. 



PAGE 



Introduction ... ... ... ... ... ... ... ••• ■•• • i 



Chapteu I. — Metaphysical Incentives to Reproduction and Distribution 

 — The Germs of the Passions, Fear, Rivalry, Love, and 

 Maternal Care, shown to exist in Insecta ; and their E.^- 

 pression in Contractions and Secretions — Correspondina: 



Senses of Touch and Smell ... ... ... ■ ■ ■ So 



Appendix. — ■ Tabular View of the Secretions of Insects ... ... ... 70 



Chapter II. — Display and Dances Material Agents in Reproduction and 



Distribution — Corresponding Sense of Sight ... ... 76 



Appendix. — ■ A List of Luminous Insects ... ... ... ... ... 101 



Chapter III. — Instrumental Music considered as a ]Material Agent in Re- 

 production and Distribution ... ... ... ... 102 



Stridulation of the Neuroptera ... ... ... ... 105 



Stridulation of the Hj^menoptera ... ... ... ... ib. 



Stridulation of the Hemiptera ... ... ... «... 108 



Stridulation of the Lepidoptera ... ... ... ...112 



Stridulation of the Coleoptera ... ... ... ...127 



Chapter IV. — Instrumental Music considered as a Material Agent in Re- 

 production and Distribution ... ... ... ... 149 



Stridulation of the Orthoptera ... ... ... ... ib. 



Of the Locustina (Leaf-crickets) ... ... ... ... l.')3 



Of the Acridiidse (Locusts and Grasshoppers) ... ... 164 



Of the GryllidEe (Crickets) 182 



Of the Gressoria ... 190 



Of the Cursoria 191 



Appendix. — Tabular View of Genera containing Insects that .Stridulate 194 



Chapter V. — Wing .Beating and Vocal Music considered as a Material 



Agent in Reproduction and Distribution ... ... 207 



Music of Flies, Bees, and Cicadse, &c. ib. 



Chapter VI. — The Organ of Hearing in Insecta 230 



Organ of Hearing in the Cicadidte ... ... ... ... 231 



Organ of Hearing in the AcridiidcB ... ... ... ... 234 



Organ of Hearing in the Locustidaj and GryllidcB ... ... 239 



Organ of Hearing in the Lepidoptera ... ... ... 243 



Organ of Hearing in the Coleoptera .. . ... ... ... 249 



Chapter VII.— The foregoing Phenomena supplemented by Migration, 



which induces Variation and Natural Selection.. ... 2.53 



Appendix. — A Table of Remarkable Cycles of Insect Multiplication and 



Migration ... ... ... ... •■• •■■ .. 31S 



A 2 



