225 



Templetonia, 143. 



Tent caterpillar, 187. 



Teuthredo, 207. 



Tettigonia, 2U9. 



Thanaos, 197. 



Thecla, 197. 



Thorax of insects, 173. 



Tliysaiiura, 127, 154. 



Tick^, 116. 



Tinea, 64, 188. 



Tijiula, 194. 



Tomicus, 199. 



Tomocerus, 137. 143. 



Tongue of insects, 183. 



Torell's discovery of Eophyton in 



Sweden, 158. 

 Tortrices, 205. 

 Tortricidse, 188. • 

 Trachea, iv. 

 Trachea3, absence of in Polynema, 



165. 

 Tracheje, origin of, 171. 

 Tree cricket. 216. 

 Trichocera hyemalis, 189. 

 Trichodes, 42. 

 Trigona, 18. 



Trochilium tipulifovme, 205. 

 Trombidium, 120, 159. 

 Trouvelot, L., on amount eaten by 



silk worms, vii, CO. 

 Turnip butterfly, 197. 



Uhler, P. R., on habits of the dragon 

 fly, 107, 110, 



Verrill, A. E., on the parasites of man 



and the domestic animals, 84. 

 Vine dresser, 59. 

 Vii-gin reproduction, 168. 



Wasp, 206. 



Water bear, 150. 



Water boatman, 166, 209. 



Waterhouse, G. R., on habits of- 

 Osmia, 27. 



Weevil, 179, 188, 194. 



Weismann on growth of insects, 164. 



West, Tuffen, on the foot of the fly, 

 viii. 



Wheat midge, 197. 



Wine fly, 83. 



Wingless insects, 171. 



Wings of insects as respiratory or- 

 gans, 165. 



Wings, origin of, 172. 



Worthen's discovery of fossil insects 

 in Illinois, 158. 



Worms, the ancestors of insects, 160, 

 169. 



Wyman, Jefl'ries, on the cells of the 

 honey bee, 17. 



Xenos, 46. 

 Xylobius, 1.59. 

 Xylocopa, 21. 



Zaddach on development of worms, 



insects aud crustaceans, 169. 

 Zoea, 156. 



