INDEX 



583 



Thysaniira, 183 f. ; distinctions from Sym- 



phyla, 61, 77, 79 

 Tibia, 88, 104' 

 Tillus elongatus larva, 90 

 Tinodes, 483 



TitanopJuisma fayoli, 276, 428 

 Tovuiteres citrimis, 454, 458 

 Tomognathus, 498 

 Tongue, 96 see also Lingua 

 Toryniides, 547 



Toxodera, 253 ; T. denticulata, 254 

 Trabeculae, 345 



Tracheae, 128 ; absent, 553, 555 

 Tracheal gills, 400 f., 401 see also 



Branchiae 

 Tremex coluinha, 507 

 Trias, 449 

 Triassic, 239 

 Trichijulus, 76, 80 

 Trichodectes, 350 ; T. latus, 349 

 Trichoptera, 342, 473 f. 

 Trichostegia, 480 

 Tricorythus, 434, 436 

 Tridactylides, 34O 

 Tridactylus variegatus, 337 

 Trigonalidae, 564 

 Trigonalys maculifrons, 564 

 Trigonidiides, 340 

 Trimen on Trachyjpetra hufo, 304 

 Trinidad, 501 



Trinoton luridum, 345, 347 

 Trito-cerebron, 118 

 Trochanter, 88, 104, 491, 494, 520 

 Trochantin, 104 ; of cockroach, 222 

 Trophi, 91, 94 

 Tryphonides, 557 

 Tryxalides, 303, 309, 325 

 Tryxcdis nasuta, 279 

 Tubulifera, 520 

 Tympanophorides, 328 

 Tympanum, 285 f. 

 Tyndall on grasshopper music, 286 



Ulloa, 33 



Uroceridae, 507 



Useless wings, 199, 394, 484, 561 



Uterns, 18, 392 



Vagus nervous system, 120 



Van Rees on metamorphosis, 162, 164 



Variation, 536 ; of colour, 252, 288, 304, 



308 ; in desert Insects, 305 : in ocelli, 



267, 395, 536 

 Vatides, 259 



Vas deferens, 18, 140, 187, 392 

 Vayssiere, on nymphs of Ephemeridae, 434 ; 



on lingua, 438 

 Veins, 206 

 Ventral chain, 116, 187. 414 ; of Perlidae, 



404 

 Ventral plate, 148 ; txibe, 191, 192 

 Verhoeif, 38 



Verlooren on circulation, 436 



Vertex, 94 



Vesicula seminalis, 140, 392 ; absent, 404, 



414 

 Vespa crabro prosteruum, 4^1 

 Vestibule, 112 

 Viallanes, on head, 87 ; on brain, 118, 



119 ; on metamorphosis, 162 

 Visceral nervous system, 120 

 Vitellophags, 147, 152, 168 

 Viviparous Insects, 217, 229, 143, 



218 

 Voetgangers, 295 f. 

 Vom Rath on sense organs, 122 

 Voracity, 250, 258 

 Vosseler on stink-glands, 210 



Walker, J. J., on Australian Termites, 

 386 



Walking-leaves, 267 



Walking on perpendicular and smooth 

 surfaces, 106 



Walsh on galls, 531 



Wasmann on St. Augustine's works, 565 



Wattenwyl, Brunner von see Brunner 



Weismann, on caste, 500 ; on meta- 

 morphosis, 162, 166 ; on imaginal discs, 

 167 



Westwood, on Forficida, 204 ; on Helico- 

 mitus larva, 460, 461 ; on Lachesilla, 

 395 ; on Scleroderma, 536 



V/eta-punga, 326 



Wheeler, on Malpighian tubes, 127 ; on 

 embryology of Orthoptera, 199 ; on 

 embryology of Xiphidiuvi, 321 ; on 

 vitellophags, 147, 152, 168 ; on seg- 

 mentation, 150 



White ants, 356 see Termites 



Wielowiejski on blood-tissue, 133, 137 



Will on brain of Aphididae, 118 



Wingless : caddis-fly, 481 ; earwigs, 205 ; 

 Insects, 345, 352, 356, 451, 488, 536, 

 547 ; wingless Psocidae, 394 f. see also 

 Apterous 



Wings, 107 ; origin and function, 394 ; of 

 Blattidae, 225 f. , 227 ; development of, 

 in locust, 288 ; in Trichoptera, 479, 480 ; 

 of dragon-fly, 413 ; of earwigs, 206 ; 

 of Ephemera, 431 ; growth of, 418 ; 

 of Ichneumon and Bracon, 559 ; pos- 

 terior absent, 466, 485 ; wing-hooks, 

 494 ; veins, 107 see also Tegmina and 

 Alar Organs 



"Wire-worm," 29, 36 



Wistinghausen on tracheae, 129 



Wood - Mason on Cotylosovia, 272 ; on 

 mandibles, 95 ; on Mantidae, 251. Ii53 ; 

 on Oligotoma, 352 ; on phonation of 

 Mantidae, 258 



Woodworth on embryolofry, 146, 153 



Workers, 361, 374, 488,^495 



Wyandotte Caves. Myriapods in, 34 



