INDEX. 



363 



Blackwall, 26, 28, 49, 56, 61, 63, 75, 76, 85, 93, 

 129, 231, 249, 279, 317; classification of 

 spiders, 17 ; experiments with poison of 

 spiders, 271. 



Bowing the snare, 198. 



Bridge lines, 342. 



Bridges, of spider silk, 63, 64, 65 ; snare of 

 Stilt spider, 157, 158. 



Bridge suspension of Theridium, 224. 



Bucholz, Dr. Reinhold, anatomy of spinning 

 organs, 35, 40 ; see Chapter II. 



Bucholz and Landois, 42; see Chapter II. 



Caddis flies, various nests of, 333, 334. 



Capturing insects, 206. 



Calamistrum, 26, 177, 186, 351 ; of Hyptiotes, 



186. 

 Cambridge, Rev. 0. Pickard-Cambridge, 19, 



23, 27, 28, 62, 174, 195, 204, 263, 272, 279. 

 Campbell, Mr. F. Maule, 143, 202. 

 Cannibalism, 259. 



Capturing insects, by Labyrinthea, 132. 

 Cephalothorax described, 21. 

 Central space, economy of, 56. 

 Chandler, Mr. Horace P., photograph of 



Epeira's nest, 110. 

 Ciniflo atrox, 278. 

 Citigrades, 16, 20, 347. 

 Classification, general divisions. 17. 

 Claws, used- in hanging to snare, 55. 

 Cleaver, Mr. P., 243. 

 Climate, limiting distribution, 163. 

 Cocoon, influence of position, 259 ; egg bag 



of Lycosa, 327 ; of Theridium nervosum 



arid T. riparium, 317; nests of Misumena 



and Philodromus, 323 ; tent of Attus, 327 ; 



tent of Water spider, 328. 

 Cocooning, 347 ; boxes for observing, 29 ; of 



Argiope cophinaria, 39. 

 Coil of slack line, 189. 

 Collecting, implements for, 31 ; manner of, 



28, 29. 

 Color, 26 ; brilliancy of certain spiders, 20 ; 



of Xephila's threads, 147 ; of Tetragnatha 



extensa, 156 ; of Orchard spider, 151 , of 



Tetragnatha, 155. 

 Composite snares, 130. 

 Construction of leaf nests, 299. 

 Cooperative housekeeping, 135, 348. 

 Counterpoise, 210. 



Courtship of Epeira labyrinthea, 132. 

 Cribellum, 178, 351. 



Cteniza californica, see Trapdoor spider, 19. 

 Currents of air, use in beginning a snare, 62. 

 Cyclosa caudata, 87, 128. 



Cyclosa bifurca, 128. 

 Cylindrical glands, 42. 

 Cyrtauchenius elongatus, 322. 



Darting threads, 45. 



Darwin, 234. 



Decoration, ribbon cords, 57 ; ribbons of Ulo- 



borus, 175, 176 ; on orb of Argiope, 107 ; 



flossy, on Gasteracantha's web, 123. 

 De Laet, 233. 

 Development of Labyrinth spider's web, 134; 



of habit in Triaranea, 141, 142, 162, 247. 

 Dews, effect of, on webs, 231, 232. 

 Diagram of spinning organs, 39. 

 Dictyna, 354 ; curled thread of, 348 ; snares 



of, 349. 



Dictyna philoteichus, webs of, 348. 

 Diptera, indifference to a spider, 257. 

 Direction, sense of, 248. 

 Distribution, 109, 182; vertical, of Domicile 



spider, 116; effect on Epeira strix, 111. 

 Dolomedes scriptus, 311. 

 Dolomedes sexpunctatus, nest of, 347. 

 Dolomedes captures a spider, 23t>. 

 Domed orbs, 150, 164. 



Domicile spider, see Epeira domiciliorum. 

 Dragline, 60, 61, 342. 

 Drassus ater, spinning spools, 49. 

 Drassus, falx and fang of, 272; nest of, 316. 

 Drinking, 2H2. 

 Duct, of silk glands, 42 : length of, in Tege- 



naria, 49. 

 Dysdera, 223. 

 Dysdera bicolor, 222. 



Edwards, Rev. Dr. Jonathan, observation of 

 spiders, 68. 



Eigenmann, Mrs. Rosa Smith, 120, 122, 125, 

 142, 211, 298. 



Emerton, J. H., 59, 86, 106, 129, 178, isii. 



Enemies of spiders, 132. 



Engineering skill of spiders, 208, Chapter 

 XIII., 342, 343. 



Environment, influence in selecting web 

 sites, 68 ; influence on food, 259 ; on dis- 

 tribution, 163 ; power to resist, 163. 



Epeira, figure of face, 21; floating on the 

 water, 161 ; the most common species, 110 ; 

 orbs of, frequent, 56; orbs over water, 64. 



Epeira apoclisa, 93, 299. 



Epeira basilica, its discovery, 164 ; form of 

 snare, 165 ; figure of the spider, 165 ; 

 architecture of snare, 166 ; manner of 

 building the dome, 168; cocoons, 169; 

 web relations with Orchard spider, 168. 



