348 



A BOOK OF INSECTS 



Stomdrys, 186 

 Stone-ilies, 65, 315, 317 

 Styles or cerci, 60 

 Stylopidcc, 46, 83 

 Straus-Durckheim, 7 

 Stridulation. 108 



— of crickets, 255 

 Sub-imago of mayflies, 25 



Sucking mouth-parts of insects, 42, 43, 



59 

 Sundews, as enemies of insects, 249 

 " Swarming " of hive-bees, 286 

 Symbiosis among insects, 206 

 Symphyta, 96 

 Syrphidcc, 94, 178 



Tdbanidce, 95, 187, 268 

 Tachinid flies, 94, 265, 266 

 Tactile sense in insects, 114 

 Tarsus of insect, 54 

 Taste of insects, 110 

 Tegmina, 46, 62 

 Telephones, 80 

 Tenebrionidce, 82 

 Tenthredinidcc, 97 

 Termes bellicosus, 303 

 Termites, 16, 66 



— damage done by, 322 



— food of, 308 



— as food, 332 



— fungus-growing by, 308 



— habitations, 306 



— insect guests of. 309 



— social life of, 301 et seq. 



— " soldiers," 302 



— West African, 303 



— wood-feeding, 194 



— yellow-necked, 305 

 Tcrmiiidtc — Termites, q.v, 

 Tetramorium, 298 

 Thayer, Abbott H., 133 

 Thcda, 130 

 Thermobia, 60 



Thrips, 23, 69 



Thorax, 33 



Thysanoptera, 69 



Thysanura, 60 



Tibia, of insect, 54 



Ticks, 33 



Tineidce, 87 



Tipula, 246 



Tipulidce, 93 



Toad, as enemy of honey-bees, 245 



Tobacco, attacks of insects upon, 322 



Tobacco plant, fertilisation of, 223 



Tongue of insect, 42 



Tortrieida, 87, 198 



Touch, sense of, 114 



Trachese of insects, 4, 312 



Traps, set by insects, 180 



Treat, Mrs., 249 



Trichoptera, 84, 317 



Trichopterygid<r , 11, 79 



Trochanter of insect, 54 



TrochUium, 148 



Tropaeolum, fertilisation by insects, 221 



Tropisms of insects, 120 



"Truffle-galls," 202 



Trypanosomes, 328 



Tse-tse fly, 13, 95, 186, 328 



Tussock moths, 88 



Ullage of wine, caused by insects, 322 



Vanessa, 139, 140, 257 



Varieties, establishment of species from, 



37, 39 

 Vedalia, 330 



" Vegetable caterpillars," 250 

 Venus's fly-trap, 249 

 Vespidec — Wasps, q.v. 

 Vision of insects, 106 

 Viviparous insects, 13, 94, 188 

 Volucella, 150, 282 



Wainscot moth. migrations of larvae of, 



275 

 " Waisted " insects, 96 

 Walker, Francis, 271 

 Walking-stick insects, eggs of, 13 

 Wallace, Dr., quoted, 145, 172, 174, 259 

 Warble-flies, 94, 266, 323 

 Warning colours, 144 ct seq. 

 Wasps, 96 



— communal life of, 288 



— cuckoo, 98, 292 



— digger, 99, 267, 268, 278 



— egg-, 318 



— fertilisation of figwort by, 230, 231 



— gall, 98, 201 et seq., 239 



— immunity from pain, 115 



— marble-gall, 205 



— mixed diet of, 190 



— nest of, 289 



— paper-making by, 288 



— parental behaviour of, 185,266, 267 



— ruby, 98, 271 



— social, 99 



— solitary, 99, 269, 278 



— true, 99, 269 



— wood, 97, 194 

 Water-boatman, 177, 310 

 Water-bugs, 176, 177, 272, 310 

 Water insects. Sec Aquatic insects 

 Water-scorpion, 177, 313 

 Water-skaters, 10, 310, 313 

 "Water-tigers," 311 



