i:n:dex of volume l 



A])domcii, anatomy of, 22; general descrip- 

 tion of, 25 ; manner of i^rotecting, 288 ; 

 section view of organs, 27. 



Acrosoma, characteristic snares, 55 ; compared 

 with Orchard sj^ider, 153 ; influence of cli- 

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

 boned brace, 57 ; webs of, 64. 



Acrosoma mitrata, 126, 127. 



Acrosoma rugosa, foundation web, 73 ; snare 

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

 ner of trapping flies, 254. 



Acrosoma spinea, 126 ; i)Osition 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 ha])its of Epeira strix, 281), 290; 

 of nesting habit, 297. 



Aeronautic habits, swinging basket, 68, 69. 



Affinities, 204. 



Agalena labyrinthea, 45. 



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

 345, 353. 



"Agrit'ultural Ants of Texas," author's work, 

 164, 168. 



Air currents, in making f()un<lation lines, 62, 

 64, 74. 



Alternate apjHisition 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 1., 11. 



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



Angulata group, nesting habits, 299. 



Anthroponiori)h ism, 210. 



Apstine, Dr. Carl, see Appendix. 



Arachne, (in-ek mytli of, 15. 



Araclinida, origin of the word, 15. 



Architecture, 284 ; see Nesting habits. 



Argiope, riljboned decorations, 57. 



Argiope argentata, character of orb, 108. 



Argiope argenteola, 108. 



Argioi)e argyrasjiis, 59, 87, 95 ; decorations on 

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

 al)domen, 22. 



Argiope cophinaria, 90 ; character of orb, 108 ; 

 description of snare. Chapter VIII., 96, 

 229 ; as a bird cati-her, 234 ; curious in- 

 cident while feeding, 256; distribution, 

 9() ; loses a captured bee, 258 ; protective 

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

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

 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. 



Attoidfe, 19. 



Attoids 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; adlu'sivcness 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 ; pre}- on 

 wt'bs, 93,94; size and shape, 87; value in 

 capturing prey, 86 ; on Tubeweavers' 

 snares; 351; on Theridiunrs snare, 352; 

 see Appendix. 



Bee, honey, escaping from si)id(M''s swathing, 

 258. 



Bertkau, Dr. IMiilip, 18, 21, 178. 



Bible reference to spider, 26. 



(362) 



