498 



INDEX 





Sharp, on Atta, 293; Hawaiian beetles, 326; 

 metamorphosis, 159; 415, 431, 4-33, 449, 



455 



Sheath, *64 



Shelford, R., 460 



Shelf ord, V. E., on chemical conditions, 383; 

 communities, 393, 397; environments, 

 388, 389; evaporation, 368, 369, 370, 

 371; physical conditions, 384; succes- 

 sion, 404, 406, 407, 408; tension lines, 

 399; tiger beetles, 174, 175, 183, 189, 

 350; 459, 472, 474, 475, 576 



Sherman, F., Jr., 426 



Sherman, J. D., Jr., 386, 456 



Shreve, 389, 391, 476 



Shull, 94, 445 



Silk, 76 



Silk glands, 75, *76 



Silkworm (see Bombyx mori}. 



Silpha, distribution of, 336 



Silurian insects, 341 



Silvestri, on Anajapyx, *6; 433, 434 



Simmermacher, 440 



Simpson, 358 



Simulium, 233; respiration, 170 



Sinclair, 433 



Siphonaptera, *2o; origin of, *25, 26 



Sirex, ovipositor of, *64 



Sirrine, 424 



Sitaris, 156 



Size of insects, 27 



Skin, 66 



Skull, 28, *29 



Skunk, insectivorous, 236 



Sladen, 287, 467 



Sleep of insects, 352 



Sleight, 385, 456 



Slingerland, 411, 424, 477 



Smell, 87; end-organs of, *88, *89 



Sminthurus, *io 



Smith, E. F., 219 



Smith, J. B., 425, 477 



Smith, R. C., 426 



Smith, T., 269 



Snodgrass, 24, 326, 328, 436, 438 



Snow flea, *io 



Snyder, 468 



Societies, 389 



Soil, 348; nutriment in, 351; structure of, 

 348; temperature, 350 



Soldier, ants, 289; termites, *277 



Somatic cells, 129 



Sorensen, 433 



Sounds, 91 



Spence, 431, 432 



Spermatheca, 125, *i26 



Spermatogenesis, 129 



Spermatophores, 124 



Spermatozoa, 124, *i25 



Sperm-nucleus, 129 



Speyer, on hermaphroditism, 126 



Sphecina, 277 



Sphecius, 277 



Sphex, *223; behavior of, 316, 318, *3i9 



Sphingidae, as pollenizers, 221, *225 



Sphinx, alimentary tract of, *io4; dispersal, 



323; pulsations of heart, 112; trans- 



formation, *i63 

 Spichardt, 450 

 Spillman, 268 

 Spines, 69 

 Spinneret, *74, 75 



Spiracles ; closure of, *i2o; number, 60, 119 

 Sbirobolus, *3 



, 267 

 Spongioplasm, 78 

 Sporotrichum, 218, 367 

 Spuler, on scales, 70; 438, 441, 458 

 Spur, *49 

 Squama, 54 



Squash bug, metamorphosis of, *i38 

 Stadium, 140 

 Stagmomantis, leg of, *5o 

 Standfuss, temperature experiments of, 183, 



458 



Stedman, 426 



Stefanowska, on pigment, 99; 444 

 Stegomyia, 255 

 Stellwaag, 438 

 Stenamma, 292 

 Stenobothrus, blood corpuscles of, *no; 



stridulation of, 92 

 Stenodictya, *343, 344 

 Stephens, 465 

 Stereotropism, 303 

 Sternberg, 250, 251, 464 

 Sternum, *47 

 Stigmata (see Spiracles). 

 Sting of honey bee, *64 

 Stinging hairs, *73 

 Stings, efficiency of, 246 

 Stipes, *35, 37, *3 

 Stokes, 449 

 Stomach, *io4 



