386 



INDEX 



Trichoptera, 226-229 

 Tropsea luna, 286 

 True bugs, 170 

 Trypanosoma gambiense, 325 

 Trypetidse, 319-321 

 Tsetse flies, 325 

 Tussock moths, 260-266 

 Twelve-spotted asparagus beetle, 124 



cucumber beetle, 120 

 Twice-stabbed lady beetle, 134, 213 

 Twisted-wing parasites, 150-152 

 Two-spotted lady beetle, 133 



-striped grasshopper, 84 

 Tuberculosis, 323 

 Tulip tree scale, 216 

 Tunga penetrans, 336 

 Typhoid fever, 321, 323 

 Typhus fever, 166 



U 



Underwings, 269 



Vagina, 23 



Value of honey and wax, 367 



Vas deferens, 24 



Vedalia, 135, 219, 220 



Velvet ants, 356 



Veratrum, 48 



Vespidse, 358 



Vespoidea, 356-360 



Vespula, 359 



Viceroy, 292 



Viviparous insects, 25, 196, 212 



W 



Walking-sticks, 80-81 



Wasps, progressive development in, 360 



Water-boatmen, 184 



"Water bugs," 76 



-scavenger beetles, 102 



-scorpions, 185 



Water skaters, 184 



Wax, 364 



Weather conditions and insects, 36 



Webbing clothes moth, 236 



Webster, 314 



Western corn-root worm, 121 



cricket, 87 



grass-stem borer, 342 



striped cucumber beetle, 119 



twelve-spotted cucumber beetle, 122 

 Whale-oil soap, 50 

 Wheat joint-worm, 348 



midge, 314 



-stem borer, 342 



straw-worm, 348 



thrips, 154 

 Wheeler, 370 

 Whirligig beetles, 101 

 White ants, 91-93 



flies, 187, 206-208 



grubs, 110-113 



marked tussock moth, 260 



pine weevil, 142 

 Wingless grasshoppers, 86 

 Wings, 12-14 



veins, 13 

 Wire worms, 108 

 Woolly apple aphis, 199 



bears, 277 



X 



Xylocopa, 361 



Yaws, 323 



Yellow-jackets, 359 

 fever, 309 

 fever mosquito, 309 

 meal-worm, 135 



Z 



Zoraptera, 94 



