INDEX 



Females, .spurious pseudogynes, 



232. 



Fetid ant, 257. 

 Fielde, Miss Adele, 10S, 273. 

 Florida harvester, 117, 204. 

 Florissant basin fossils, 176. 

 Food, 77; supply, variation in, 



107; solid, given, 109; bearers' 



arrival in nest, 179; quarrels 



over, 219. 



Food call, in ants, 146. 

 Foot, 53, 54. 



Foraging habit formed, 78. 

 Foramen, 80. 

 Forel, Dr. August. 8, 31, 32, 34, 



153, 154, 199, 200, 256, 257, 273. 

 Formic acid of ants, 38, 101; 



marking out roads, 59; fumes 



as guide, 63; batteries, 210. 

 Fort Clark, Texas, ants, 65. 

 Fossil ants, of Oligocene and 



amber, 176. 



Fossils, ants burrow in, 24. 

 Founder of commune, 77. 

 Founding community, 17. 

 Fountain, Gen. S. W., 65. 

 Fraternization, 6, 7. 

 Fruits, as ant food, 82. 

 Forelius faetidus, 257. 

 Forelius maccooki, 257. 

 Formica diffitilis-conscians, 264. 

 Formica ex secta, 8. 

 Formica ex sectoides, 2, 3; size of 



communities, 8, 37, 61, 225. 

 Formica fn.sca, 263; of Baltic 



amber, 177. 

 Formica gnava, 227. 

 Formica pratensis, 255. 

 Formica rufibarbis, 256. 

 Formica Sanguinea, 265. 

 Formica sanguinea - rubicund a, 



153. 



Formica Schaufussi, 153, 230, 258. 

 Formica Schaufussi-inccrta, 230, 



264. 



Formica subsericea, 153, 199, 263. 

 Formica ru/a, 58, 61, 265. 

 Fraternal confederacies, 1 et seq. 

 Fury, under assault, 41. 



GALLERIES, as lodgings, 41; 



arched, 49. 

 Galls, oak, as food, 110. 



Gardner on insect music, 131. 

 Gate closing, Occident ants, 68, 



70; opening, 69. 

 Gate closing, cutting ants, 72-75. 

 Goeldi, Dr., 95. 



Good-temper and harmony, 194. 

 Grass, use of, in building, 38. 

 Grasshopper, shrilling, 140. 

 Gryllus riridissimus, 140. 

 Guards, 188. See also Sentinals. 

 Gustatory organs, 80. 



HAIRS, specialized, 149; and 



spine, 279. 



Hardening material, 42, 44. 

 Harvesting ants, 119. 

 Health, 289. 



Hearn, Prof. Lafcadio, 141. 

 Herbert, Edmund, 241. 

 Hill, Mr. R., 24. 

 Hollidaysburg, Pennsylvania, 



ants of, 2. 

 Honey-ants, 274, 290; nest and 



sentinels, 10; exterior of nest, 



19; face, 80; abdomens of, 103; 



oak galls with, 110; structure, 



111; queen, 173. 

 Honey-bearers in natural site, 



112. 



Honey-dew as food, 30, 102. 

 Horse ants, 58. 

 House-fly spiracles, 136. 

 Huber, Francis, pere, 137, 138. 

 Huber, Jakob, 95, 97. 

 Human parasites, social, 233. 



INDIVIDUALISM in ant commune, 

 302. 



Industry, martyrs of, 160. 



Insectivorous, habit utilized, 110. 



Instinct, co-operating, 41 ; elastic, 

 50; to preserve species, 180. 



Intelligence, ants', key to, 150, 

 296.^ 



Internal economy of ant com- 

 munes, 155. 



Island Heights ants, 99. 



JANET, CHARLES, 256. 

 Japanese insect cages, 141, 142. 



317 



KANSAS ants, Sapa Creek, 24, 25. 

 Katydid, stridulating, 143. 



