690 



Ind 



ex 



Scepsis ftthicollis. 411 



Sciara, 325 



Schisloccrca aiiicricatia, 

 ♦139, 141 ; cmarginata, 

 *I40 



Schizura, 395 



Sclcritc. *s 



Scolytidae, S c o I y t u s 

 (nKii/.vTTTciv, scolyptcn, 

 to strip [bark]), 294, 297 



Scorpion-flies, 55. 223, 236 



Scrcw-worin fly. 344 



Sctiddcria furcata, *IS2; 

 pistillala. *I52 



Scutelleridae. Scutellera 

 (scutum, a small shield), 

 195. 207 



Scutelhini (dorsal trian- 

 gular piece at the base 

 of and between elytra or 

 fore tvings) 



Scydmrenida;, Scydmsnus 

 ( nKvSiiaivo^, scydinccnus, 

 angry-looking, sad-col- 

 ored). 265 



Seed-gall, jumping, 472 



Segment. 5 



Self-pollination. 564 



Senilia cainctis. *i69 



Sense of hearing. 29: of 

 sight. 30 ; of smell. 27 ; 

 of taste. 26; organs. 24; 

 tactile. 26 



Senses, special. 24 



Sepednn fascifeniiis. *350 



Sericostoniatidre. Sericos- 

 toma ("vi""''!, sericus, 

 silken : orSfta. stoma. 

 month). 244. 245 



Sermyle. 133 



Serosa. 38 



Scrphus dilatus, 200; sp., 



*200 



Serrate. *2so 



Serricornia (serra, a saw ; 

 eornu. horn). 251, 265; 

 key to families of. 265 



Sesia f< i e t i ft e s , *392 ; 

 tipuliformis, ,390 



Sesiidx. Sesia ("'/f, ses, a 

 moth), 368. 388 



Setting-board with butter- 

 flies properly spread, 

 ♦638 : cross-section of, 

 showing construction. 

 *638 ; how to make. 638 



Seventeen-year Cicada, 

 166, 167 



Shad-flies, 65 



Sheep-louse, *2I9 



Shecp-tick<'"35i, *3S2 



Shicld-batkcd bugs, 195, 

 214; g/asshopper, *IS5 



Shore-b/ig, 195, *202 



Short - beaked mosquito, 

 *309 ; pupa and larva of, 

 *3og 



Short-winged cricket, *I58 



Short-winged locust, *I40, 

 *I4I, 142 



Sialidse. Sialis (oia'/.ic. si- 

 alis a kind of bird), 

 key to genera of. 224 ; 

 key to larvae of. 224 



Sialis. 224; infumata. ma- 

 ture stages of, *225 



Sihine slimulea, 384 



Sight, sense of, 30 



Silkworm dissected, *430; 

 mulberry, *428, *429 



Silkworm-moths, 369; 

 mating reflexes of, 640 



Silphti americana, 261; 

 lapponica, 261; tiovebo- 

 racensis, *26l, 262 



Silphids, Silpha ("i^'t'l, 

 silphe. a beetle), 258, 261 



S i I z' a u u s suriiiaiiiensis, 

 stages of, *262 



Silver-spots, 456 



Silver-spotted skipper, 442 



Silvius polliiwsus. 329 



Siniplccta sp., venation of 

 wings of, *32i 



Simuliidse, S i m u 1 i u m 

 (simulare, imitate), 304, 

 .313 



Sim u Hum sp., *3i2; head 

 of larva, show-ingmouth- 

 parts, *3i4; larva and 

 pupa;, *3i2; mouth- 

 parts, *3i3; mouth- 

 parts of larva, *3i3; 

 venation of wing, *3 1 2 



Sinoxylon basilare, 272 



Siphonaptera (oi^ui', .st- 

 plwii, tube: iTTTtpnc, ap- 

 terus, wingless), 56. 353 ; 

 key to families of. 355 



Siricicoidea (see Siri- 

 cidje), 464 



Siricidae, Sirex (aeipi/v, si- 

 ren, a siren, wasp), 463, 

 466 



Sisyra umbrata, stages of, 

 ♦229 



Sitaris humeralis, life-his- 

 tory of, 291 



Sitrodrepa panicea, 271 



Sium cicultefolium, visited 

 by insects, 571 



-Skipper-butterflies, 442 



Slave ants. 547 



Slave-maker ants, 547 ; 

 shining, 547 



Slaves. 547 



Slug, pear-tree, 466; rose, 

 466 



Smell, sense of, 27 



Smelling-pits on antenna 

 of carrion-beetle, *27 



Smeriiitlius gcminatus , 

 *435. 437 : larva of. *436 



Smoky-moths. 369. 386 



Smynthuridse, Sminthurus 

 (er/iii-tSof, s m i « t h u s, 

 mouse; oipa, ura, tail), 



63 



Smynthurus aquaticus, 

 *58; Iwrtensis, 63 



Snake-doctor, 76 



Snake-feeder. 76 



Snap-dragon, specialization 

 of. for insect pollination, 

 572 ; visited by honey- 

 bees. *563 



Snapping apparatus of 

 click-beetle. *267 



Snipe-flies. 327. 330, 332 



Snout-beetles. 294 



Snow-flea. *64 



Snow-white Eugonia. 398 



Snowy tree-cricket, *I59, 

 160 



Social wasp. Hymenoptera 

 parasites of. *48o 



Soldier-beetle. 269 



Soldier-bug. banded. 204 



Soldier-flies. 327. 329 



Solcnopsis molcsta. 544 



Solidago canadensis, vis- 

 ited by insects. 571 



Song of snowy tree- 

 cricket. 160 



Sooty-wings. 442 



Sound-making by Orthop- 

 tera. 123. 134. 150. *I5I, 

 152. 155. *i57. 159: fi'e 

 of cricket. *I57: organ 

 of the Cicadids. *i67 



Southern grain -plant- 

 louse. *I72 



Span-worms. 395 



Species. 56 



