INDEX 



623 



Sericteria, 325 

 Seroot-fly, 482 

 Serricornia, 189, 213, 255 

 Sesia, 387 ; S. scoliaeformis, 321 

 Sesiidae, 386, 388, 370 (for Syntomidae), 



389 



Setae, 534 f. ; aerostatic, 408 

 Setina, 410 



Seventeen-year Cicada, 569 

 Sex, differences, 92, 95 ; production of, 



32, 67 ; in larva, 325 

 Sexuparous, 586 



Sharp, on classification of Dytiscidae, 213 n. 

 Sheep, bot-fly, 517 ; -tick, 518 

 Shield, 592 

 Shoulder, -lappets, 312 ; -tufts, 312 ; of 



wing, 319, 316 

 Siagona, 206 

 Siculodidae, 423 



Siebold, von, on Strepsiptera, 301 

 Sigara minutissima, 568 

 Sight, of Pompilus, 104 

 Silk-glands, 325 

 Silkworm, 375 ; affected by parasitic fly, 



507, 508 ; Madagascar-, 405 

 Silpha, 221 ; Silpha atrata, S. laerigata, 



S. lapponica, 222 ; S. obscura, 222 ; S. 



opaca, S. thoracica, 222 

 ^Silphidae, 221 f., 252, 256 

 Sima, 168 ; S. leviceps, stridulating organ, 



169 ; S. ntfonigra, 169 

 Simuliidae, 477 

 Simulium columbaczense, 477 

 Sinodendron cylindricum, 194 

 Siphon, 563, 581, 589 

 Siphonaptera, 522 f. 

 Siphonophora, 239 

 Siphunculata, 600 

 Sitaris, 33 ; S. humeralis, 272 

 Sitodrepa, 247 

 Skippers, 363 



Slave-making ant, 149, 150, 163 

 Sloth, 430 

 Slug-worms, 402 

 Smallest Insect, 228 

 Smerinthini, 380 

 Smerinthus populi, 309, 381 

 Smith, F., on Mellinus arrensis. 123 

 Snails, enemies of, 205, 222, 510 ; parasite 



of, 495 



Social, bees, 35 ; wasps, 78, 84 

 Sociales, 20, 53 f. 



Solatium dulcamara, beetle on, 232 

 Soldiers, 132 

 Soldier-ant, 150 

 Solenobia, 395, 430 



"psisfugax, 137 

 Solitary wasps see Fossores and Eurne- 



nidae 



Song, of Cicada, 572 

 Soronia, 232 

 Sound-organs, 448 ; of Ageronia, 354 ; of 



Hecatesia, 371 ; of Cicada, 573, 574 



see also stridulating organs 

 Sound-production, 155, 156 ; by Aegocera, 



411 ; by Arctiidae, 410 ; by Sphingidae, 



382 see also Stridulation 

 Spalacopsini, 288 

 Spatula, 459 



Spencer, Herbert, on Weismann, 143 

 Spercheus emarginatus, 218, 219 

 Spermatheca, 320, 321 

 Spermophila, 506 

 Sphaeridiides, 219 

 Sphaeriidae, 227 

 Sphaerttes, 223 

 Sphaeritides, 229 

 Sphaerius acaroides, 227 

 Sphaerocarides, 279 

 Sphecia, 387 

 Sphecius speciosus, 123 

 Sphecodes, 21, 22 ; S. gibbus, 23, 23 ; S. 



rubicundus, 22 ; S. subquadratus, 23 

 Sphegidae, 93, 107 f. 

 Sphegides, 107 f. 

 Sphex coendeus, 110 ; S. flavipennis, 108 ; 



S. lobatus, 110 ; S. maxillosus, 108 

 Sphindidae. 245 



Sphingidae, 309, 315, 316, 368, 380 f. 

 Sphinx ligustri, 380 

 Spider parasite, 490 

 Spilosoma, 408 



Spinneret, 324, 325, 403, 417 

 Spirachtha, 227 

 Spiracles, 188, 191 ; of Diptera, 449 f. ; 



of Hippoboscidae, 519 ; of Lepidoptera, 



313, 314 ; of Lipara, 451 ; of Xepa, 



564 ; of Thrips, 528 

 Spondyliaspis, 581 

 Spondylidae, 288 

 Springing plant-lice, 579 

 Spuler, on nervures, 317 n. 

 Squama, 448 

 Squeakers, 209 

 Staetherinia, 401 

 Stag-beetles, 193 

 Stalk, 317, 319 

 Staphyliuidae, 223, 224 f. 

 Staudinger, Schatz and Rober, on butter- 

 flies, 343 n. 



Wi/iii-HHotits maroccanus, 489 

 Staur opus fag i, 385 

 Slelis minuta, 29 ; S. nasuta, 30, 43 ; S. 



xiijiiiita, 30 

 Stelocyttares, 81 

 Stenamma tcestwoodi, 159 

 Stenopteryx hintndinis, 519 

 Stephostethus, 240 

 Sternorhyncha, 544 

 Sterrkopteryx, 394 

 Stethopathidae, 496 

 Stigmata see Spiracles 

 Stigmatomma, 180 

 Stigmut pendvku, 128 



