178 



IM>K\. 



Shrilling of insects, 314. 



Sight df spiders, accuracy of, L'Sli; limited, 



295, 11 Hi. 



Silk, spider, colors of, 348. 

 Silliman, Prof. Benjamin, 281, 2S2. 

 Simon, JF. Kugene, 69, 138, 139, 140. Kill, 184, 



287, 288, 297, 332, 347. 356, 389. 4011, 411, 



111', 415, 417, 461. 

 Siinonella americana, 357. 

 Sites, meooiiiiur. 75. 



sixe, spiders', different in, 67; disparity in, 

 62 ; influencing development, 66 ; varia- 

 tion in, l'ii. 



Smell, organs of, 300; sense of, 21H). 



Mnyth, Prof. Egbert C., 280. 



Solitary habit, 03 ; wasps, 387. 



Sounds, efl'ects of, on spiders, 301 ; uses of, 314. 



South American spiders, :'>:::',, 358, 412. 



Sparrows eat ants. 362. 



speckled Agalena, see Agalena ntevia. 



Spermatozoa, 72. 



Sphecius s]>eciosus, 383. 



Spheroma, 315. 



Spiderlings, life of, 197. 



Spines, abdominal, 330; protective, 339. 



Spinning, habit influencing courtship, 62 ; in- 

 dustry defective in male, 63. 



Skill, mechanical, of spiders, 202, 203, 404. 



Skinner, Miss C., 218. 



Staveley,E. F., 28, 118, 119, 132, 188, 189, 194, 

 347, 399. 



Steatoda bipunctata, 318. 



Steatoda borealis, 27, 169, 186 ; pairing, 44. 



Steatoda guttata, 317. 



Steatoda maculata, 120. 



Stothis astuta, 412, 413. 



Stothis cenobita, 412, 413. 



Stridulating apparatus, 316 ; Mygale, 319. 



Stridulation, of spiders, 317, 318; organs of, 

 317, 318 ; uses of, 319. 



Structure and color, 351. 



Sunbirds, 399. 



Survival of the fittest, 370. 



Swallows eat spiders, 379. 



Swedish spiders, 310. 



Swifts, 379. 



Swinging basket, 254, 281. 



Synagales picata, 33, 189; love dance, 51. 



Synemosyna americana, 359. 



Synemosyna formica, 357, 358. 



Syphiix megacephalus, 4(17. 



Sytodes cameratns, 120, 121. 



Tactile hairs, 310, 313. 



Tailed spider, 102; see Cyclosa caudata. 



Tarantula, 140, 106, 3(X>, :!85, )U9. 113; njre of, 



429 ; cocoon of, 141 ; striking, 320, 322. 

 Tarantula killer, 384, 385. 

 Tarentula tigrina, see Lycosa tigrina. 

 Tatton Hall. 290. 

 Tegenaria agrestis, 131, 187. 

 Ti-enaria civilis, 280,429. 

 Tegenaria derhamii, 123. 

 Tegenaria domestica, 189, 308, 429. 

 Tegenaria emaciata, 131. 

 Tegenaria guyonii, 16, 47, 74, 202; courtship 



of, 24. 

 Tegenaria medu-inalis, 123. 124, 169, 189, 23<i. 



330, 334, 337, 347. 

 Tegenaria persica, 123. 

 Tente, cocooning, 86, 87, 294. 

 Termeyer, Haymond, 21, 22, 33, 110, 142, 187. 

 Territclarise, 455; cocoons of, 137, 143; mak- 

 ing cocoons, 166. 

 Tertiary spiders, 44(i ; trees, 464. 

 Tethneus, 452. 



Tetnignatha, 379; mimicry of, 147. 

 Tetnignatha elongata. 3ii5. 

 Tetragnatha extensa, 365, 366, 38(i. 451 ; co- 

 coon of, 94, 96 ; pairing of, 34. 

 Tetragnatha grallator, 365, 451. 

 Tetragnatha tertiaria, 451 . 

 Teutana triangnlosa, 377 ; see Theridium ser- 



pentinum. 



Texas, (iossamer spider of, 2(i7. 

 Textris lycosina, 125. 

 Theraphosoidie, 140. 

 Theridioids, colors of, 324. 

 Theridiosoma gemmosum, 4(>1. 

 Theridiosoma radiosum, cocoon of, 461. 

 Theridium, 466. 

 Theridium carolinum, 120. 

 Theridium differing, 116, 417. 



Theridium frondeum, 114, 115, 460; coc 



see Theridiosoma radiosum, 461. 

 Theridium globosum, 199. 

 Theridium hirtum, 467. 

 Theridium lineatum, 116. 

 Theridium maculatum, 120. 

 Tlieridinm nervosnm, 119. 

 Theridium pallens, 116. 

 Theri(lium riparinm, 65. 

 Theridium serpentinnm, see Teutana triangu- 



lossi, 112, 377. 



Tluiridium studiosum, 169, 193. 

 Theridium tepidiiriorum, 27, 111, 112, 164, 165, 



169, 222, 287, 834, 876, 38B, 389, 186. 



Theridium varians, 118. 

 Tbei-idinm variegatum, 189. 

 Tberidium /elotypum, 64, 119. 



