INDEX. 



363 



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

 129, 231, 249, 279, 317; clap.<ification of 

 spiders, 17; exi)eriments with poison of 

 spiders, 271. 



Bowing the snare, 198. 



Bridge lines, 342. 



Bridges, of spider silk, 63, (>4, 65 ; snare of 

 Stilt spider, 157, 158. 



Bridge suspension of Theridium, 224. 



Bucliolz, Dr. Reinliold, anatomy of spinning 

 organs, 3."), 40; see Chapter II. 



Bueholz and Landois, 42; see Chapter II. 



Caddis flies, various nests of, 333, 3.34. 



Capturing insect.«, 20(>. 



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



1S(). 

 Cambridge, Rev. (). Pirkard Camltridge, 19, 



23, 27, 28, 62, 174, 19.i, 204, 263, 272, 279. 

 Campl)ell, Mr. F. Maule, 143, 262. 

 Cannibalism, 2."'>9. 



Capturing insects, liy l^abyrinthea, 132. 

 Cephalothorax described, 21. 

 Central space, economy of, 56. 

 Chandler, 'Sir. 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, 2.")9 ; egg bag 



of Lycosa, 327 ; of Theridium nervosum 



and 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, imi)lementK for, .'{I ; manner of, 



28, 29^ 

 Color, 26; brilliancy of certain spidei*s, 20; 



of Nephila's tiireads, 147 ; of Tetragnatha 



exten.«a, 156; of Orchard spider, 151, of 



Tetragnatha, 155. 

 Composite snares, 130. 

 Construction of leaf nests, 299. 

 Coijpi'rative housekeeping, 135, 348. 

 Counterpoise, 210. 



Courtship of I^jcira lal)yrinthea, 132. 

 Cribellum, 17S, .351. 



Cteniza californica, see Trapdoor spider, 19. 

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

 Cydosa caudata, 87, 12S. 



Cyclosa bifiirca, 128. 

 Cylindrical glands, 42. 

 Cyrtauchenius elongatus, 322. 



Darting threads, 45. 



Darwin, 2.34. 



Decoration, riljljon cords, 57 ; rii)l>ons of Ulo- 



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



flossy, on Gasteracantha's web, 123. 

 De Laet, 2:53. 

 Development of Labyrinth si)ider's wel), 1:34; 



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

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

 Diagram of spinning organs, .39. 

 Dictyna, 'io4; curled thread of, 348; snares 



of, 349. 

 Dictyna philoteichus, webs of, MS. 

 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 sjiider, 236. 

 Domed orbs, 150, 164. 

 Domicile spider, see Epeira domiciliorum. 

 Dragline, 60, 61, :342. 

 Drassus ater, spinning si)Ools, 49. 

 Drassus, fiflx and fang of, 272 : nest of, 316. 

 i>rinking, 262. 

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



naria, 49. 

 Dysdera, 223. 

 Dy.sdeni l)icolor, 222. 



Edwards, Rev. Dr. .Jonathan, observation of 



spiders, 6S. 

 j:igenmann, Mrs. Rosa Smith, 120, 122, 125, 



142, 211, 298. 

 Emerton, J. H., 59, i<(\, lOl!, 12!i, 17s. Isc. 

 Enemies of spiders, i:i2. 

 Engineering skill of spidei-s, 20S, Chapter 



XIII.. :;42. MS. 

 Environment, influence in selecting web 



sites, 6S; influence on food, 259; on dis- 



trilmtion, 1(53; i)Ower to resist, 163. 

 f4>eim, figure of face, 21; floating on the 



water, 161 ; the most connnon species, 110 ; 



orljs of, fre(|uent, 56; orl>s over water, (>4. 

 Epeira apoclisa, 93, 299. 

 Epeira basilica, its discovery, 164; form of 



snare, 165; figure of the sjuder, 1(>5; 



architectua> of snare, KMi ; manner of 



I)uilding the dome, 168; cocoons, 169; 



web relations witli Orchard spider, 168. 



