INIlKX. 



283 



Polysphincta, 54. 



Polysphincta dictynse, 55. 



Polysphincta tuberosa, larva of, 53. 



Pompillidffi, 63. 



Popular superstitions, 81. 



Portulse, of epigynum, 127. 



Poteat, Mr. W. L., 21. 



Predicting weather from spider habits, 77. 



Prey, capturing, position in, 65; methods of 



seeking, 49. 

 Priority, law of, 134. 

 Prosthesima furcata, parasites on, 59. 

 Protective habits, 67, 102. 

 Pugnacity in males, 37. 

 Purseweb spider, cleanliness of, 21. 



Rafting spider, 24. 



Rain, influence on spinningwork, 80; effects 



of, 91. 



Reasoning in spiders, 45. 

 Reaumur, M., on spider silk, 85. 

 Receptaculum seminis, 130. 

 Recognition, methods of, 40. 

 Reeling silk from spiders, 86, 87. 

 Regeneration of lost organs, 116, 120. 

 Repairing webs, 72. 

 Reproduction of organs, 116. 

 Riley, Professor C. V., 252. 

 Russia, spiders of, 31. 



Sailing spiders, 264. 



Sai'tis pulex, parasites on, 59. 



Saltigrades, 43, 46. 



San Domingo spiders, 201. 



Savignia frontata, 23. 



Saviguy and Audouin, 264. 



Scapus, 127. 



Schimkevitch, W., 110. 



Scotland, spiders of, 42. 



Secretiveness, 27. 



Sedentary spiders, 102. 



Segestria, 129. 



Segestria canities, tubeweaving webs, 38. 



Self amputation, 117. 



Shamrock spiders, 18, 72; housekeeping hab- 

 its, 19. 



Sickness of spiders, 101. 



Silk, spider glands, 114 ; industry, 83, 84 ; 

 lining burrows, 33; how prepared from 

 cocoons, 89 ; sources of, 84 ; spinning, 86. 



Simon, M. Eugene, 9, 27, 34, 36, 38, 39, 41, 42, 

 76, 133, 235, 247, 248, 249. 



Singa, genus, 229. 



Singa conica, 225. 



Singa Keyserlingi, 230. 



Singa Listerii, 231. 



Singa maculata, 235. 



Singa maura, 234. 



Singa Mollybyrnte, 229. 



Singa nigripes, 232. 



Singa rubella, 230. 



Singa variabilis, 233. 



Skin, 104; forming anew, 109. 



Slosson, Mrs. A. Trumbull, 248. 



Smith, Mrs. L., 146, 171, 172, 198, 260. 



Snares, mending of, 71. 



Social habits, 35. 



Social Theridioids, 39. 



South America, spiders of, 36, 250. 



Sparassus smaragdalus, 106. 



Species, perpetuation of, 90; use of, 95. 



Spermatheese, 127. 



Spiderlings, 91. 



Spinning habits, relations to parasitism, 60; 

 spinning silk, 86. 



Spinningwork, Orbweavers, 71. 



Steatoda bo real is, 55. 



Stillbers, Mr., 89. 



Stothis astuta, 34. 



Submergence of spiders, 24. 



Sundevall, Mr., 132, 267. 



Superstitions concerning spiders, 81 ; in the 

 Netherlands, Connecticut, Ireland, Ger- 

 many, 82. 



Survival, struggles for, 61. 



Swan's Island spiders, 253. 



Swaying the body, 67. 



Swiss spider, 106. 



Tarantula, 98, 104, 107 ; toilet habits, 17 ; bur- 

 rowing and feeding habits, 28. 

 Tarantula hawk, 75. 

 Tarentula opifex, 31. 

 Tegenaria medicinalis, 73, 98. 

 Tegulum, 130. 

 Tendon of foot, 114. 

 Territelarise, 33, 94. 

 Termeyer, Abbe, 85. 

 Tetragnatha, genus, 258. 

 Tetragnatha argyra, 243. 

 Tetragnatha Banksi, 262. 

 Tetragnatha caudata, 266. 

 Tetragnatha elongata, 260, 263. 

 Tetragnatha extensa, 259, 263. 

 Tetragnatha fimbriata, 260. 

 Tetragnatha fluviatilis, 260. 

 Tetragnatha fulva, 260. 

 Tetragnatha grallator, 260. See T. elongata. 

 Tetragnatha Illinoisensis, 260. 

 Tetragnatha laboriosa, 262. 



