Index 



6 93 



Triphlcps insidiosus, 206 



Tripoxylon albopilosum, 

 502 ; frigidum, 502 ; ru- 

 brocinctum, 502 



Triprocris, 388 



Triungulin, 290 



Trochanter, *247 



Trochilium fraxini, *3Q2 



'iropisms, 635, 636 



Tropizaspis sp., *ISS, 156 



Tropcca luna, 420, *422; 

 cocoons of, *423 . 



Trox, 275 



Trumpet-galls on leaves of 

 California white oak, 

 *470 



Trypeta longipennis, *349; 

 ludens, 350; solidaginis, 

 350 



Trypetidae, Trypeta 

 ( rpinravov, trypanum, a 

 borer), 350 



Tryxalinse, 136, 142 



Tumble-bugs, 273, 274 



Turkey-gnats, 313 



Turnus butterfly, 449 



Tussock-moth, degenerat- 

 ing muscle of, *50 ; 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 ros<e, 170 



Udcopsylla robusta, *I54 

 Uloma impressa, 289 

 Ulula hyalina, *2$2 

 Underground nest of Cali- 

 fornia honey-ant, *54 

 Underwings, a group of 



red and yellow, *4OO 

 Utetheisa bella, 413 



Valves of dorsal vessel or 



heart, *i8 

 Vanessa atalanta, 454 ; 



cardui, 454 ; caryce, 454 ; 



hunt era, 454 

 Vedalia cardinalis, 186, 



*i87, 287 



Veins of wings, 10 

 Veliidse, Velia (perhaps 



Velia, a Greek colony in 



Southern Italy), 195, 



198 



Velvet-ants, 497 



Venation, 10 ; of a cossid, 

 *385 ; of dragon-fly wing, 

 *8g; of a Geometrid, 

 *396; of monarch but- 

 terfly, *n; of social 

 wing, *U3; of a Pyro- 

 morphid, *38g ; of a 

 Tortricid, *38o ; wing 

 o f Anthrax fulviana, 

 *333; of wing of bag- 

 worm moth, *38g; 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, *33S ; 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 

 ccesar, *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, *32g; of wing of 

 Pyralid moth, *376; of 

 wing of robber-fly, *33i ; 

 of wing of Syrphus con- 

 tinuax, *339 



Ventral (bellyward) 



Ventral plate, 38 



Vertex, 142 



Vespa, 503, 506; crabro, 

 nest of, *504; cuneata, 

 506 ; germanica, 506 ; 

 maculata, 506; sp., *50S 



Vespidse, Vespa (vespa, a 

 wasp), key to genera of, 

 503 



Vespina (see Vespidae), 

 463 



Vespoidea (see Vespidse), 

 464 



Viceroy, 452; butterfly 

 mimicking monarch but- 

 terfly, *6io 



Vine-hoppers, *I7O 



Vine-loving pomace-fly, 349 



Violet-tip butterfly, 454, 

 *455 



Vitelline membrane, 37 

 Volucella, 340 



Walking-stick, *I3I, 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, *4(5o, 

 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, 

 490; mason, 498; mim- 

 icry of, by moths, *6o8; 

 nest-building by, 508; 

 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 ; ha' its of, 492 ; sting 

 ing prey, 495 ; structure 

 of, 491 ; true, 463 



Water-beetle, +25. 



Water-boatmen, 194, 198, 

 *i99 



Water-bug, giant, 199, 

 *20o; western, *2OO 



Water-creepers, 199 



Water-net, *639 



Water scavenger - beetle, 

 259 ; development of egg 

 of, *38 ; external anat- 

 omy of, *247 



Water-scorpion, 194, *2Oi ; 

 eggs of, *20i 



Water-skater, ocean, *I97 



Water-striders, 195, 196, 

 *I97; broad-bodied, *I97 



Water-tiger, *2$6 



Wax-making o f honey- 

 bee, 526 



Wax secreted by aphids, 

 175 



Webbing clothes-moth, 374 



Web-worm, fall, 412 



West-coast lady, 454 



