Index 



40: 



Sub-imago, 124. 



Sub-kingdoms, 1. 



Sub-mentum, 15. 



Sub-cesophageal ganglion, 32. 



Sub-order, 156. 



Sub-species, 134. 



Sucking jaws, 14, 16. 



Sucking-pump of gullet, and suck- 

 ing stomach, 67. 



Super-family, 155. 



Super-orders, 164. 



Supra-OEsophageal ganglion, 32. 



Surroundings, influence of, 136-40, 

 144-6 ; of insects generally, 

 282-343. 



Swarming, 335. 



Swift-moths, 232, 326-7. 



Swimming-legs, 25. 



Symphyla, 364-5. 



Synonyms, 151 (footnote). 



Syntomida?, 241. 



Syrphidae, 262-3. 



Systematic zoology, 128-9. 



TABANiDiE, 259-60. 



TachininjE, 266. 



Tarsus, 24. 



Taste, 49. 



Tegulae, 22, 228. 



Temperature, effects of, 138-9. 



Tenebrionidas, 221 ; larval wing- 

 rudiments, 358. 



Tenthredinidae, 271-2, 297. 



Tentorium, 6. 



Tephritids, 266. 



Tephrosia, 148. 



Terebrantia, 270. 



Tergum, 21, 30. 



Termites, 180; kidney-tubes, 71 ; 

 ovaries, 75 ; communities, 338- 

 340. 



Testes, 79, 99. 



Therevidae, 261, 



Thigh, 22. 



Thorax, 20-2. 



Thripidi, 184. 



Thrips, nymph of, 117. 



Throscida;, 217. 



Thyatiridse, 242. 

 Thynnid^, 277. 

 Thyrididx, 238. 

 Thysanoptera, 162, 183-5, 349, 



355- 



Thysanura, 161, 162, 168-70, 

 346-8. 



Tibia, 23. 



Tiger-beetles, 207. 



Tineids, 235-6. 



Tingidids, 188. 



Tipulida?, 258, 263. See also 



Crane-flies. 



Tongue, 15. 



Tortricidz, 234-5. 



Touch, sense of, 47. 



Trachea, 57-9. 



Tracheal gills, 61, 350-1. 



Transformations. See Metamor- 

 phosis. 



Tribolium, 143-4. 



Trichoptera, 157, 160, 163, 225-7, 

 360-1. See aho Caddifi-(\ies. 



Trichopterygidx, 210. 



Tritocerebron, 36, 93. 



Trochanter, 22. 



Trogositida;, 212. 



Ulnar nervure, 27. 



Uraniidx, 244, 298-9. 



Use and disuse, 145-6, 287-8. 



Useful insects, 342-3. 



Utility of specific characters, 1 42-4. 



Vagina, 73, 99. 



Vanessa, caterpillar, 329. 



Variation, causes of, 136-40. 



Variety, 129-134. 



Vas deferens, 79. 



Vegetable-feeding insects, 299-304. 



Vent, 31. 



Ventral tube of CoUembola, 166. 



Ventricular ganglion, 34-5. 



Vesicula seminalis, 79-81. 



VespidsE, 279T 



Virgin reproduction, 88-9. 



Vision of insects, 40-2. 



Vitelline membrane, 74, 84. 



