INDEX. 



299 



Texas, 241. 

 Thalessa, 236. 



atrata, 235. 



Thecla, 202, 203, 219. 



Thorax, 47, 49, 183, 196, 208, 231-233, 

 240, 243, 257, 259, 262, 264, 267, 272, 

 274> 275. [See Descriptions of 

 types.] 



Thripidae, 113. 



Thrips cerealium, 113. 



striatus, 113. 



Thysanoptera, 60, 113. 



Thysanura, 47, 48, 50, 54, 55, 58, 62, 

 64, 66, 73, 91, 114, 275. 



Thysanuriform, 54. 



larva. [See Larva.] 



Tibia, 123. 



Ticks, 285. 



Tiger-beetles, 157. 



Tinea, 196. 



pellionella, 200. 



Tineidae, 200. 



Tipula, 257. 



Agarici seticornis, 259. 



Tipulidse, 257-259, 262. 



Tischeria, 202. 



Tongue, 24, 25, 82, 



Toothed ridges, 76. 



Tracheae, 30, 38-40, 58, 67, 83, 87, 

 254- 



Treat, 240, 265. 



Tree-hoppers, 138. 



Tremex, 236. 



Trias, 28. 



Trichoptera, 178, 179, 201. 



Triungulin, 158. 



Trochanter, 27. 



Trouvelot, 22, 198, 199. 



Tubercle, 14. 



Tympanal organs, 19. 



Tympanic membrane, 23. 



Types, descriptions of, [see below]. 



locust, 8-45. 



Campodea and Lepisma, 64- 



67. 



May-fly, 69-71. 



dragon-fly, 73-88. 



stone-fly, 90. 



white ant, 92-97, 



ear-wig, 100. 



Thrips, 113. 



squash-bug, 115-120. 



JSIay-beetle, 145-149. 



Corydalus, 170-172. 



Panorpa, 176, 177. 



caddis-fly, 178-181. 



milk-weed butterfly, 186-195. 



Types honey-bee, 223-230. 



horse-fly, 248-255. 



Typical crustacean ring, 15. 



U. 



Uhler, 129. 



Unexpected modifications, 165. 



United States, 8, 145, 216. 



Uroceridae, 232. 



Use, eflTects of, 16, 30, 



law of, 40. 



Vagus nerve, 37. 

 Vanessa Antiopa, 219. 

 Veinlets, 29. 

 Veins, 29, 30, 39. 

 Vermes, 12. 

 Verrill, 116, 268, 273. 

 Vertebrata, 12. 

 Vertebrates, 108. 



muscles of, 37. 



respiratory organs of, 59. 



Vespa, 243. 



maculata, 242. 



Vespidae, 242. 



W. 



Walking-stick, 105, 106. 



Wallace, 106. 



Walsh, 207. 



Walshii, 216-218. 



Walters, 247. 



Water-beetles, 166. 



Water-boatman, 121, 122. 



Weevils, 24, 68, 145, 163-165, 167, 

 168, 176, 281, 282. [See Curculi- 

 onidae.] 



Weismann, 218, 250, 266. 



West Virginia, 216. 



Westwood, 33, 151, 177, 179, 235. 



Wheat-midge, 263. 



Wheel-bug, 124. 



White ants, 92. [See Termites.] 



Wigglers, 261. 



Wild cockroaches, 105. 



Williston, 259. 



Wing-covers, 29, 100, 107, no, 126, 

 147-149, 159, 162, 166. [See Ely- 

 tra.] 



Wings, 49, 59, 98, 103-107, 109, no, 

 122, 124, 126-129, 133-135, 140, 159, 

 161, 162, 166, 172, 196, 201, 208, 



