482 



INDEX 



Schwarz, on distribution, 378, 380 ; 



myrmecophilism, 343 ; 462 

 Schwedt, 445 

 Sclerite, 29 

 Scolopendra, *4 

 Scolopendrella, *6, 22 

 Scudder, on albinism, 201 ; coloration, 



210; fossil insects, 385, 386, 390, 



391, 392; glaciation, 370; mimicry, 



227 ; Orthoptera of Galapagos Ids., 



37 1 , 374J spread of P. rapa, 381; 



stridulation, 106; 409, 418, 421, 



422, 426, 446, 462, 464, 465 

 Scutellum, *48 

 Scutum, *48 

 Seasonal coloration, 201 

 Second maxillae, the term, 39 

 Sedgwick, 412 

 Segmentation, of arthropods, 27 ; germ 



band, *i49, *i5o, *I52;/ head, 44, 



* 4 6 



Segments of abdomen, 65, 66 

 Seitz, 447, 454, 458, 459, 462 

 Sematic colors, 234 

 Seminal, ducts, *i4o, 141 ; receptacle, 



*i4i, *i42; vesicle, *i4o, 142 

 Semon, 463 



Semper, C., on scales, 78, 421 

 Semper, K., 461 

 Sempers, 465 

 Sense organs, 94 

 Sensilla, 94, *95 

 Serosa, *i48, 149, *i53 

 Sessiliventres, 20, *2i 

 Setaceous, *34 

 Setae, modifications of, 76 

 Seventeen-year locust, number of 



moults, 165 

 Sexual coloration, 205 

 Sharp, on Atta, 335 ; Hawaiian beetles, 



372; metamorphosis, 177; 410, 412, 



4i9, 435, 445 

 Sheath, *7o 

 Shelford, 451 

 Siebold, von, 426, 436 

 Silk, 85 



Silk glands, 83, *8 4 , *8s 

 Silkworm (see Bombyx mori) 

 Silpha, distribution of, 379 

 Silurian insects, *3&s 

 Silvestri, on Anajapyx, *6 

 Simmermacher, 422 

 Simulium, 276; respiration, *i9o 

 Sinclair, 412 

 Siphonaptera, 19, *2i ; origin of, 24, 



* 25 



Sirex, ovipositor of, *7o 

 Sirodot, 421, 429 



Sitaris, 1 74 



Size of insects, 27 



Skin, 73 



Skull, *29 



Skunk, insectivorous, 280 



Slingerland, on losses through insects, 



394; 403, 405 

 Smell, 98; end-organs of, *99, *ioo, 



*IOI 



Sminthurus, *g, 10 



Smith, J. B., 405, 415, 416, 465 



Smith, T., on Texas fever, 306 



Snodgrass, on Orthoptera of Galapa- 

 gos Ids., 371, 374 



Snow flea, *g 



Soldier, ants, 330; termites, *3i6 



Sollmann, 418 



Somatic cells, 146 



Somatogenic variations, 241 



Sorensen, 413 



Sounds, 103 



Species, origin of, 245 



Spence, 410, 411 



Spencer, 452 



Spermatheca, *i4i, *i42 



Spermatogenesis, 146 



Spermatophores, 142 



Spermatozoa, *i4i, 142 



Sperm-nucleus, *i46 



Speyer, on hermaphroditism, 143 



Sphecina, 315 



Sphecius, 315 



Sphex, *263 ; behavior of, 359, 362, 

 *36 3 



Sphingidse, as pollenizers, 262^*266 



Sphinx, alimentary tract of, *ii9 ; dis- 

 persal, 367 ; pulsations of heart, 

 128; transformation, *i82 



Spichardt, 437 



Spines, 76 



Spinneret, *84 



Spiracles, closure of, *i36; number, 

 66, 136 



Spirobolus, *3, 4 



Spongioplasm, 87 



Sporotrichum, 259 



Spuler, on scales, 78; 417, 423, 448 



Spur, *53 



Squama, 58 



Squash bug, metamorphosis of, *is8 



Stadium, 159 



Stagmomantis, leg of, *53 



Standfuss, temperature experiments 

 of, 205, 373 ; 448 



Stefanowska, on pigment, 113, 428 



Stegomyia, in relation to yellow fever, 

 304 



Stein, 436 



