1040 



AN INTRODUCTION TO ENTOMOLOGY 



Sphinxes, 655 



Sphyracephala brevicornis, 859 



Spiders, 9 



Spider-wasps, 933, 934 



Spines, 32, 445 



Spiracles, 52, 113, 1 14; structure of, 116 



Spiracular musical organs, 91 



Spirostreptiis, 16 



Spittle-insects, 402 



Spondvlida-, 525 



SpondyUs, 469, 524 



Spongilla-fiies, 291 ; labia of, 293 



Spongophorus ballista, 404; 5. querini, 



404 

 Sporoblasts, 809 

 Sporozoite, 808, 809 

 Spotted pelidnota, 519 

 Spring azure, 771 

 Spring of the CoUembola, 76 

 Spring-tails, 225 

 vSpuler, A., 859 

 Spurious vein, 70 

 Spurs, 32 

 Squama, 776 

 Squamae, 60 



Squash-bug, egg-mass of the, 170 

 Squash-vine borer, 637 

 Stable-fly, 873 

 Stadia, 172 

 Stag-beetles, 523 

 Stagmatophora gleditschia^ella, 630 

 Stagmomantis Carolina, 263 

 Staphylinid£E, 470, 488 

 Staphyliniis macidosus, 489; S. viil- 



pinus, 489 

 Stegomyia calopus, 809; S.fasciata, 809 

 Stelis, 976 

 Stem-eyed fly, 859 

 Stem-mother, 415 

 Stenelmis bicarinatus, 505 

 Stenobothrus, 82 

 Stenogaster, 950 

 Stenoma, 625; 5'. schlxgeri, 625 

 Stenomida', 582, 591, 625 

 Stenopelmatina;, 235, 242 

 Stenopelmatus, 242; ventral aspect of 



the metathorax, 98 

 Stephanida;, 890, 907, 919 

 Slerictiphora, 903 

 Sternal spatula, 815 

 Sternellum, 52 

 Sternites, 35 

 Sternopleura, 783 

 Sternum, 34, 52 

 Sthenopis, 595; S. argenteomaculatus, 



596; S. pupurascens, 595, 596; S. 



thide, 596 

 Sicla Carolina, 971 

 Sticktight flea, 883 

 Stigma, 74 

 Stigmata, 113 



Stigmiis fraterniis, 968 ; .S'. podagricus, 

 wings of, 968 



Stiletto-flies, 839 



Stink-bugs, source of odor, 355 



Stink-glands, 102, 462 



Sti[)es, 44 



Stizini, 970, 974 



Stizus unicinctus, 970 



Stomach, 1 1 1 



Stomoda^um, 108 



Stomoxys calcitrans, 873 



Stone-flies, 325 



Stone-fly, naiad of, 327 



Slratiomyia, 831 ; wing of, 831 



Stratiomyiidffi, 786, 788, 830 



Straus Durckheim, 40, 106, 121 



Strawberry crown-girdler, 539 



Streblida^, 787, 790, 794, 875 



Strepsiptera, 194, 213, 214, 215, 546 



Stridulating organs, 81; of corixidae, 

 362; of the locustidae, 82; of the 

 gryllidag and the tettigoniida;, 83; 

 of Ranatra, 356 



Strigilis, 886 



Striped flea-beetle, 532 



Sturtevant, A. H., 861 



Styli, 56, 76, 222 



Stylopidae, 546 



Stylopids, 546, 958; mouth-parts of 

 male, 547 



Stylus, 442 



Subcosta, 64 



Subcostal fold, 73 



Subgalea, 44 



Subimago, 312 



Suboesophageal commissure, 125; gan- 

 glion, 123, 124 



Submarginal cells, 886 



Submentum, 46 



Subnodus, 319 



Subquadrangle, 323 



Subterminal band, 575 



Sugar-cane, beetle, 520; borer, 650 



Sulphur, cloudless, 749; dainty, 749; 

 little 749; orange, 748 



Sumac bobs, 634 



Superimposed image, 143 



Superlinguae, 43, 226 



Supertriangle, 319 



Supplements, 70 



Supra-alar groove or cavity, 783 



Supra-anal plate, 231 



Supra-tympanal or subgenual organ, 



151 



Suspensoria of the viscera, 162 ; thread- 

 like, 163 



Sutures, 35; the thoracic of Diptera, 

 782, 783 



Swallow-tail, black, 741; larva, 742; 

 tiger, larva, 742; zebra, 743 



Sweet-fern geometer, 666 



