INDEX 



583 



Thysanura, 182 f. ; distinctions from. Sym- 



phyla, 61, 77, 79 

 Tibia, 88, 104 

 Tillus dongatus larva, 90 

 Tinodes, 483 



Tilanophasma fayoli, 276, 428 

 Tomateres citrinus, 454, 458 

 Tomognathus, 498 

 Tongue, 96 see also Lingua 

 Torymides, 5JfH 



Toxodera, 253 ; T. denticulata, 254 

 Trabeculae, 345 



Tracheae, 128 ; absent, 553, 555 

 Tracheal gills, 400 f., 401 see also 



Branchiae 



Tremex columba, 507 

 Trias, 449 

 Triassic, 239 

 Trichijulus, 76 



Trichodectes, 350 ; T. latus, 349 

 Trichoptera, 342, 473 f. 

 Trichostegia, 480 

 Tricvrythus, 434, 436 

 Tridactylides, 340 

 Tridactylus variegatus, 337 

 Trigoualidae, 564 

 Trigonalys maculifrons, 564 

 Trigonidiides, 340 

 Trinien on Trachypetra bufo, 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 

 Tryocalis nasuta, 279 

 Tnbnlifera, 520 

 Tympanophorides, 328 

 Tympanum, 285 f. 

 Tyndall on grasshopper music, 286 



ULLOA, 33 



Uroceridae, 507 



Useless wings, 199, 394, 484, 561 



Uterus, 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 deferais, 18, 140, 187, 392 

 Vayssiere, on nymphs of Epherneridae, 434 ; 



on lingua, 438 

 Veins, 206 

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



404 



Ventral plate, 148 ; tube, 191, 192 

 Verhoetf, 38 



Verloef [misprint for Verhoeff] 



Verlooren on circulation, 436 



Vertex, 94 



Vesicula seminalis, 140, 392 ; absent, 404, 



414 



Vespa crdbro prosternum, 491 

 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 



Wasmaun on St. Augustine's works, 565 

 Wattenwyl, Bruuner von see Brunner 

 Weismann, on caste, 500 ; on meta- 

 morphosis, 162, 166 ; on hnagmal discs, 

 167 



Westwood, on Forjtcula, 204 ; on Helico- 

 mitus larva, 460, 461 ; on Lachesilla, 

 395 ; on Sderoderma, 536 

 Weta-puuga, 326 



Wheeler, on Malpighian tubes, 127 ; on 

 embryology of Orthoptera, 199 ; on 

 embryology of Xiphidium, 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 

 Wistinghauseu on tracheae, 129 

 Wood - Mason on Cotylosoma, 272 ; on 

 mandibles, 95 ; on Mantidae, 251, 253 ; 

 on Oligotoma, 352 ; on phonation of 

 Mantidae, 258 



Woodworth on embryology, 146, 153 

 Workers, 361, 374, 488, 495 

 Wyandotte Caves, Myriapods in, 34 



