IXDEX 



66 1 



Ouediiis 382 



Queens, parasitic 186 



Querciis 299 ; Q. nndnlata 375, 368 



R. 



Races 131 



Radoboj ants 164 



Randia 295 



Reactions, historical basis of 531 ; pho- 



tophobic 515: phototropic 515; to 



Roentgen rays 516 

 Reasoning 540 

 Receptaculum seminis 39 

 Recognition, of friends and foes 510, 



534 



Rectum 31 



Reflexes, catenary 520 

 Regurgitation 35 

 Reproductive organs 39 

 Respiratory system 49 

 Rhinomyrmc.Y 144 

 Rhinopsis rnficornis 422 

 Rhipsalis 299 

 Rhisomyrma 143 

 Rhogmus 137, 248 

 Rhopalomastix 140 

 Rhopalomyrmex 143, 167, 172, 173; R. 



pygiiKCiis 162 

 Rhopalopone 135 

 Rliopalosiphniii 352 

 Rhopalothri.v 141, 158 

 Rhoptromyrmex 141 

 Rhozites gongylophora 327 

 Rhynchoclaviger 404 

 Rhytidoponera 16, 93, 135 

 Rhyzopns nigricans 316 

 Ricinns 299, 300 

 Ripersia 349 

 Rogeria 139 

 Rosa 299 

 Run-ways 222 



s. 



Saccharomyces 334 

 Sacculina 450, 451 

 Saliva of ants 1 77 

 Salivary duct 19 

 Sambucns 295, 299 

 Sanguinaria canadensis 315 

 Sapium 295 

 Sarcolysis 49 

 Sarracenia 297, 299, 317 

 Saw-flies 13, 68 

 Scape 20 

 Schizoneura 347 

 Schombnrgckia 296 

 Schwartzia 295 

 Scoliidae 244 

 Scolytidse 338 

 Sculpture of ants 15 

 Sciitclligera 385 

 Scutellum 22 

 Scittigcra 235 



Seed-distribution, ants instrumental in 



Segmentation 14 



Semonius 142 



Sensations 505; auditory 512; contact- 



odor 514; olfactory 509; tactile 509; 



temperature 509 ; of vibrations 513, 



514 ; visual 515 

 Sense-organs 59 

 Sensillae, ampullaceous 61 ; basiconic 61 ; 



campaniform 65 ; clubs of Forel 61 ; 



coeloconic 61 ; flask-shaped organs of 



Forel 6 1 ; gustatory 61. 511 ; olfactory 



61, 511; tactile, or trichodeal 59 

 Sericomyrmex 141, 318, 319, 320, 337 

 Shnckardia 137, 248 

 Sideroxylan 432 

 Sifoliuia 139 ; S. laitrcc 432 

 Silenc 317 

 Silphidae 399 

 Sima 27, 139, 167, 303, 304; S. allabor- 



ans 123 ; S. rufonigra 422 

 Siniopone 137 

 Siphonophora 352 

 Siphons of aphids 343 

 Siricidse 160 

 Slave-makers, degenerate 489 ; faculta- 



tive 452 ; obligatory 471 

 Social bees 68, 90 

 Social wasps 68 

 Soldier 97 



Solenopsia iinitatri.r 420 

 Solenopsidii 140 

 Solcnopsis 63, 64, 98, 113, 114, 125, 



140, 147, 152, 158, 159, 377, 4^8, 429, 



493, 515; -S". f'tga.r 65, 420, 427; S. 



geiuiuata 11, 114, 146, 155. 201, 206, 



250, 268, 269, 278, 279, 357, 419; S. 



latro 427: S. molesta 10, 24, 221, 427; 



S. orbula 427; 5". nifa 153, 269; S. 



te.rana 427 ; S. validiuscula 418 

 Solidago 212 



Spalgis 360 ; S. cpins 359 

 Species 130 

 Sperm 39, 40 

 Spermatogenesis 41 

 Sphagnum 317 

 Sphecophila polybiarum 397 

 Sphinctomyrmex 137; S. taylori 227 

 Spines of ants 180 

 Spondyliaspis eucalypti 350 

 Staphylinidse 379 

 Stemmata 20, 66 

 Stcnanuna in, 140, 148, 268; S breyi- 



corne 150; 5". nearcticiini 150; S. 



^vestz^.'oodi 150 



Stereomyrme.v 136, 139; 5. lionti 127 

 Sternum 22 

 Sternoccelis 388 

 Stictoponera 135 

 Stigmacros 143 

 Stigmata 22, 28, 49 

 Stigmatomma 134. 158. 159, 227, 231, 



