348 



INSECT LIFE. 



Saturniidoe, 189. 



Scales, 49. 



Scallop-shell moth, 200. 



Scolytidge, 216. 



Scorpion-flies, 78. 



Scorpions, 56. 



Sex, indication of, 321. 



Sheep-tick, 57. 



Shore -bugs, 159. 



Short-horned grasshoppers, 72. 



Shrimps, 53. 



Sialidse, 155. 



Sialis, 156. 



Silver-spotted skipper, 202. 



Simple eyes, 12. 



Simuliidse, 158. 



Siphon, constant-level, 331. 



Siphonaptera, 84. 



Siricidse, 217. 



Skippers, 80, 81. 



Smaller leaf - eating caterpillars, 



205. 



Social virasps, 259. 



Soldier-beetles, 273. 



Solidago, 272. 



Solitary wasps, 258. 



Songs of insects, 235. 



Sow-bug, 54. 



Spiders, 222. 



Spiracles, 19. 



Spreading board, 304. 



Spreading insects, 303. 



Spreading pin, 304. 



Springtails, 63. 



Stone-flies, 66, 102, 103, 146. 



Stink-bugs, 76. 



Subimago, 100. 



Sugaring, 292. 



Sumach, 261. 



Supplies for pupils, 24. 



Supplies for the school, 25. 



Surface film of water, 104. 

 Swallow-tail butterflies, 24: 



Tarantulas, 230. 

 Tarsal claws, 16. 

 Tarsus, 16. 



Telea polyphemus, 190. 

 Termites, 67. 

 Thorax, 17. 



Thread-waisted wasps, 261. 

 Thrips, 74. 

 Thysanura, 63. 

 Tibia, 16. 

 Tiger-beetles, 270. 

 Tiger-moths, 239. 

 Tiger swallow-tail, 243. 

 Toad -shaped bugs, 160. 

 Tortricids, 182, 207. 

 Tortricina, 182, 207. 

 Tracheal gills, 54, i^i. 

 Trap-door spiders, 230. 

 Tree-hoppers, 219. 

 Trichoptera, 79, 151. 

 Trochanter, 15. 

 Tropaea luna, 192. 

 True grasshoppers, 73. 

 Trypeta solidaginis, 274. 

 Trypoxylon frigidum, 262. 



Vanessa atalanta, 251. 

 Vanessa cardui, 251. 

 Vanessa huntera, 251. 

 Veins of the wings, 16. 

 Veliidae, 109. 

 Vespa, 260. 

 Vespidse, 260. 

 Viceroy, 249. 

 Virginia creeper, 29. 



Wanderer, 163. 

 Walking sticks, 72. 



