INDEX 



401 



Tsetse-fly, 324 



Tube-building moth, 200 



Tubulifera, 90, 91 



Tumble-bugs, 154 



Tunga penetrans, 328 



Turkey-gnat, 304 



Tussock-moth, 232; California, 233; old, 



232; white-marked, 232 

 Twisted- winged insects, 176 

 Two-spotted oberea, 164 

 Typhoid-fly, 323 



Uloboridas, 8, 13 

 Uloborus, 14 

 Underwings, 238 

 Utetheisa, 242 



Vanessa atalanta, 270; V. cardui, 271; V. 



virginiensis, 270, 271 

 Vanhorniidas, 384 

 Veliidas, 10 1 

 Velvet-ants, 356 

 Verruga, 296 

 Vespa crabro, 369; V. diabolica, 369; 



wings of, 364; V. maculata, 369; V. 



maculifrons, 369 

 Vespidas, 364 

 Vespid wasps, 364 

 Viceroy, the, 275 

 Violet tip, 273 

 Volncella, 314 

 Walking-sticks, 58 

 Wall-bee, nests of, 384 

 Wanderer, the, 284 

 Warble-flies, 320 

 Wasps, social, 366; typical, 364; solitary, 



364; digger, 369; sphecoid, 369 

 Water-boatmen, 97 

 Water-bugs, giant, 99 

 Water-scavenger beetles, 141 

 Water-scorpions, 98, 99 

 Water-striders, 101 ; broad-shouldered, 



101 

 Water-tigers, 139 

 Wax, 383 

 Wax-glands, 383 

 Webs, orb, 15, 16 

 Webworms, cabbage, 214; garden, 214; 



corn-root, 215; fall, 244 

 Wedge-shaped leaf-beetles, 167 

 Weevil, black vine-, 170; strawberry-, 170 ; 



pea, 168; New York, 170; fungus, 169; 



primitive, 169 



Wheat joint-worm, 354 



Wheat-midge, 302 



Wheat-sawfly-borer, 341 



Wheat straw-worm, 354 



Whip-scorpions, 4 



Whirligig-beetles, 139 



White-ants, 63 



White, checkered, 266 



White flies, 118 



White fly, citrus, 119; greenhouse, 119 



White-grubs, 156 



White-marked tussock-moth, 232 



White Mountain butterfly, 278 



Whites, the, 265 



Window-flies, 309 



Wings of the heart, 36 



Wings of Hymenoptera, 330 



Wings, 32; mounting, 186 



Wing-veins, the chief branches of the, 32, 



33; the principal, 33 

 Wireworms, 148 

 Witch, black, 236 

 Witch-hazel cone-gall, 117 

 Wohlfahrtia vigil, 322 

 Wood-borers, 148 

 Workers, 64, 358, 381, 382 

 Worms, 1 



Xenopsylla cheopis, 327 



Xiphydriidae, 384 



Xyelidae, 384 



Xylina antennaria, 240; X. laticinaria, 



240; X. grotei, 240 

 Xylocopa virginica, 366, 377 

 Xylomyidae, 307, 325 

 Xylophagidae, 307, 325 



Yellow-bear, 244 

 Yellow-fever mosquito, 299 

 Yellow-jackets, 369 

 Yellows, the, 267 

 Yponomeuta padella, 207 

 Yponomeutidas, 207 

 Yucca-moths, 195 



Zebra, the, 263 

 Zerene ccesonia, 267 

 Zeuzera pyrina, 197 

 Zophodia grossularice, 217 

 Zoraptera, 62 

 Zorotypidae, 62 

 Zorotypus hubbardi, 62 

 Zygoptera, 79 



