INDEX OF VOLUME I. 



Abdomen, anatomy of, 22; general descrip- 

 tion of, 25 ; manner of protecting, 288 ; 

 section view of organs, 27. 



Acrosoma, characteristic snares, 55 ; compared 

 with Orchard spider, 153 ; influence of cli- 

 mate upon, 164 ; length of legs, 24 ; rib- 

 boned brace, 57 ; webs of, 64. 



Acrosoma initrata, 126, 127. 



Acrosoma rugosa, foundation web, 73 ; snare 

 of, 125, 126 ; Acrosoma rugosa, 338 ; man- 

 ner of trapping flies, 254. 



Acrosoma spinea, 126; position at hub, 127. 



Adaptation, in laying foundation lines, 73 ; 

 after mutilation, 78; in spinning spirals, 

 82, 83 ; labor saving, 85 ; to force of winds, 

 209, 216, 217 ; of orbweb for its ends, 247 ; 

 in nesting habits of Epeira strix, 289, 290 ; 

 of nesting habit, 297. 



Aeronautic habits, swinging basket, 68, 69. 



Affinities, 204. 



Agalena labyrinthea, 45. 



Agalena noevia, 23, 28, 220, 221, 227, 260, 315, 

 345, 353. 



"Agricultural Ants of Texas," author's work, 

 164, 168. 



Air currents, in making foundation lines, 62, 

 64, 74. 



Alternate apposition of radii, 75, 228. 



Amaurobius, sticky web of, 351, 352 ; see Ap- 

 pendix. 



Analogies, in spinningwork of Orbweavers 

 and Lineweavers, 170. 



Anatomy of spiders, see Chapters I., II. 



Anchors, of stone, for orbwebs, 213, 214. 



Angulata group, nesting habits, 299. 



Anthropomorphism, 210. 



Apstine, Dr. Carl, see Appendix. 



Arachne, Greek myth of, 15. 



Arachnida, origin of the word, 15. 



Architecture, 284; see Nesting habits. 



Argiope, ribboned decorations, 57. 



Argiope argentata, character of orb, 108. 



Argiope argenteola, 108. 



Argiope argyraspis, 59, 87, 95 ; decorations on 

 web, 107 ; suspended to snare,' 55 ; view of 

 abdomen, 22. 



Argiope cophinaria, 90 ; character of orb, 108 ; 

 description of snare, Chapter VIII., 96, 

 229 ; as a bird catcher, 234 ; curious in- 

 cident while feeding, 256; distribution, 

 96 ; loses a captured bee, 258 ; protective 

 wings of, 309 ; sheeted hub, 55, 56 ; silk 

 glands, 40; snare, figure of, 52; spinning 

 spigots, 38; spinning spools, 37; swathing 

 insects, 250. 



Argiope fasciata Hentz, see Argiope argy- 

 raspis. 



Argiope riparia, see Argiope cophinaria. 



Argyroneta aquatica, nest of, 328. 



Argyroepeira hortorum, 77, 91, 92; beautiful 

 colors, 151 ; favorite sites, 152 ; position at 

 hub, 152; protective apron, 152; orb char- 

 acteristics, 153. 



Armature of orbwebs, 78, Chapter V. 



Attoi'dse, 19. 



Attoi'ds compared with Lycosids, 20. 



Atypus Abboti, nests of, 325. 



Ausserer, 16, 28. 



Bag worm, 332. 



Ballooning, see Aeronautic habits. 



Banks, Sir J., 77. 



Basilica spider, see Epeira basilica. 



Beads, viscid, 80 ; on spirals, acid character 

 of, 95, 96; adhesiveness of, 94; appearance 

 to eye, 88 ; formation of, 88, 89 ; dissolved 

 by rain, 91, 92 ; effect of sun and air on, 

 94 ; natural formation of, 90, 91 ; prey on 

 webs, 93, 94 ; size and shape, 87 ; value in 

 capturing prey, 86; on Tubeweavers' 

 snares ; 351 ; on Theridium's snare, 352 ; 

 see Appendix. 



Bee, honey, escaping from spider's swathing, 

 258. 



Bertkau, Dr. Philip, 18, 21, 178. 



Bible reference to spider, 26. 



(362) 



