Index 



397 



arium, 120-1 ; relationships, 



361-3. 

 Flowers and Insects, 300-1. 

 Follicles of ovarian tubes, 74. 

 Food-canal, 61-65. 

 Foot, 24. 

 Fore-body, 20-22. 

 Fore-gut, 64, 93, 96, 97. 

 Forficulidx, 172. See jiso Earwigs. 

 Forks of thoracic sternites, 21. 52. 

 Formicidx, 276-7. See also Ants. 

 Fossil insects, 352-5, 359-63. 

 Free pups, 118. 

 Frenulum, 229. 

 Fresh-water insects, 288-94. 

 Frog-hoppers, 195 ; kidney-tubes, 



7'- 

 Frontal ganglion, 34. 

 Fulgorida:, 194-5, 355. 

 Fungus-eating insects, 304. 



Gadflies, 259-260. 



Galea, 13. 



Gallflies, 273 ; parthenogenesis, 

 88-89. 



Gall-midges, 256; pedogenesis, 

 126. 



Galls, 303-4. 



Ganglia, 32. 



Gastrula, 91. 



Gena, 6. 



Genital armature — male, 82-83 > 

 female, 76-79. 



Genital glands and ducts — male, 

 79-82 ; female, 73-75 ; develop- 

 ment of, 99-100; of Earwigs, 

 171 ; of Mayflies, 198 ; origin, 



374- 

 Genus, 149-152. 



Geographical distribution, 296-9. 

 Geographical race, 134. 

 Geometiids, 242-4, 317-19. 

 Geological formations, 352. 

 Germinal spot, 85 ; vesicle, 84. 

 Germ-cells, 99-100. 

 Germ-plasm, 100. 

 Gills, 61, 112, 294, 354. 

 Gizzard, 63. 



Glands, 67-70. 



Glow-worm, 218. 



Gnats, 258; feelers, lo-ii; jaws, 



12-17; '^S^' ^5' ®^''^' 4^' 

 poison-glands, 69; larvi, 114, 

 292; pupjE, Ii8, 121, 124. 



Golden-eye Flies, 205 ; eggs, 85. 



Gonapophyses, 76-9. 



Grasshoppers, 175-6; legs, 25; 

 ears, 43-5 ; ovipositor, 76; eggs, 

 85; embryo, 91-2; hatching, 

 101. 



Ground-beetles, 207-8, 285-6, 310. 



Growth, 101-103. 



Grubs, 103-1 14. 



Gryllids, 176. 



Guests of Ants, 337. 



Gula, 7. 



Gullet, 62. 



Gyri cerebraies, 36. 



Gyrinida;, 208-9, 289-90. 



Haliplld^, 208. 



Halobates, 295-6. 



Halteres, 250. 



Hamanumida, 316. 



Harpes, 82. 



Hatching, 100- 1. 



Haunch, 22. 



Haustellata — sub-order of Lepi- 



doptera, 156,231; sub-class, 1 64. 

 Hawk-moths, 242 ; caterpillars of, 



319-20. 

 Head, 5-8 ; in embryo, 93. 

 Heart, 54 ; development of, 99. 

 Hebrida;, 188. 

 Heliconiins, 250, 320. 

 Hemerobiids, 204-5. 

 HemimeridsE, 173. 

 Hemimetabolous insects, 115-116, 



164. 

 Hemiptera, 160-1, 163, 185-197, 



349-So> 355- 

 HepialidjE, 232, 326-7, 

 Heredity, 136. 

 Hesperiids, 246-247. 

 Heterocerids, 215. 

 HeterogynidsE, 234. 



