Index 



693 



Triphlcfs insidiosus, 206 



Tripoxylon albofilosum, 

 502; frigidum, 502; ru- 

 brocinctum, 502 



Triprocris. 388 



Triungulin, 290 



Trochanter. *247 



Trochilmm fraxini, *392 



'i'ropisms, 63s, 636 



Tropizaspis sp., *I5S. 156 



Tropcca luna, 420, *422; 

 cocoons of, *423 



Trox, 275 



Trumpet-galls on leaves of 

 California white oak, 

 *470 



Trypcta longipcnnis, *349 ; 

 ludens, 350 ; solidaginis, 

 350 



Trypetidae, T r y p e t a 



( Tpimn-ov, trypaiiuin, a 

 borer), 350 



Tryxnlinae, 136, 142 



Tumble-bugs, 273, 274 



Turkey-gnats. 313 



Turnus butterfly. 449 



Tussock-moth, degenerat- 

 ing muscle of. *5o; de- 

 veloping mouth-parts of, 

 *363 : larva of. *405 ; 

 parallel-lined. 405 



Tussock-moths. 370, 404 



Twig-insect, *6o3 



Two-striped locust, *i38, 

 141 



Typhlocyba rosa, 170 



Udcopsylla robusta. *I54 

 Uloma impressa, 289 

 Ulula hyalina, *232 

 Underground nest of Cali- 

 fornia honey-ant, *54 

 Underwings, a group of 



red and yellow, *400 

 Utetheisa bella, 413 



Valves of dorsal vessel or 



heart, *l8 

 Vanessa atalanta, 454; 



cardui, 454 ; carya; 454 ; 



huntcra, 454 

 Vcdalia cardinalis, 186, 



*i87. 287 

 Veins of wings, 10 

 Veliidas, Velia (perhaps 



Veha, a Greek colony in 



Southern Italy), 195, 



198 



Velvet-ants, 497 

 Venation. 10; of a cossid, 

 *38s ; of dragon-fly wing, 

 *89 ; of a Geometrid, 

 *396; of monarch but- 

 terfly, *ii ; of social 

 wing, *II3; of a Pyro- 

 morphid, *389; of a 

 Tortricid, *38o; wing 

 o f Anthrax fulviana, 

 *iii ; of wing of bag- 

 worm moth, *389 ; of 

 wing of Bibio albipcnnis, 

 *326 ; of wing of black- 

 fly, *3I2; of wing of 

 Chrysophila thoracia, 

 *330 ; of wing of crane- 

 fly, *32i ; of wing of 

 dance-fly, *335 ; of wing 

 of Dixa sp., *32o; of 

 wing of a Dolichopodid, 

 *336 ; of wing of fungus- 

 gnat. *325 ; of wing of 

 Hepialus gracilis, *372 ; 

 of wing of horse-fly, 

 *328 ; of wing of Lucilia 

 cccsar, *344 ; of wing of 

 Micropteryx sp., *372; 

 of wing of monarch 

 butterfly, *37i ; of wing 

 of net-winged midge. 

 *3I7: of wing of Odon- 

 tomyia, *329; of wing of 

 Pyralid moth. *376 ; of 

 wing of robber-fly, *33i ; 

 of wing of Syrphus con- 

 tinuax. *339 



Ventral (bcllyward) 



\'entral plate, 38 



Vertex, 142 



Vespa, 503. 506; crabro, 

 nest of, *504 : cuncata. 

 506; gcnnanica. 506; 

 macitlata. 506; sp.. *505 



Vespids, Vespa (vcspa, a 

 wasp), key to genera of, 

 503 



Vespina (see Vespidae), 

 463 



Vespoidea (see Vespidae), 

 464 



Viceroy, 452 ; butterfly 

 mimicking monarch but- 

 terfly. *6io 



Vine-hoppers. *I70 



Vine-loving pomace-fly, 349 



Violet-tip butterfly, 454. 

 *45S ' 



Vitelline membrane, 37 

 Volucella, 340 



Walking-stick, ♦131, 132, 



*6o3 

 Walking-sticks, 126; key 



to genera of, 132 

 Walnut-moth, regal. 246, 



*427 ; larva of, *427 

 Warble-flies, 338 

 Warning colors, 604 

 Wasp, development of 

 mouth-parts of, *46o, 

 461 ; mouth-parts o f , 

 *46o; mouth-parts of 

 larva, *46i ; mud-dauber, 

 nest of, *499 

 Wasp-flies, 332, 336 

 Wasp-like fly, *336 

 Wasps, 56, 490; carpenter, 

 ♦502; classification of, 

 4Qo; mason, 408; mim- 

 icry of, by moths, *6o8; 

 nest-building by, 50S; 

 potter, 498; social, 503; 

 solitary, 491; solitary, 

 Fabre's experiments on 

 instincts of, 643; soli- 

 tary, Peckham's experi- 

 ments on instincts of, 

 650 ; classified by habits, 

 497 ; haV its of. 492 : sting- 

 ing prey, 495 ; structure 

 of, 491 : true, 463 

 Water-beetle, *2 5. 

 Water-boatmen, 194, 198, 



*i99 

 Water-bug. giant, 199, 



*200 ; western, *200 

 Water-creepers. 199 

 Water-net, *639 

 Water scavenger - beetle, 

 259 ; development of egg 

 of, *38 ; external anat- 

 omy of. *247 

 Water-scorpion. 194. *20l ; 



eggs of. *20l 

 Water-skater, ocean. *I97 

 Water-striders. 195, igiS, 

 *I97; broad-bodied, *I97 

 Water-tiger, *2.s6 

 Wax-making o f honey- 

 bee. 526 

 Wax secreted by aphids, 



175 

 Webbing clothes-moth, 374 

 Web-worm. fall. 412 

 West-coast lady, 454 



