440 



Sunflower, Diabrotica longk-oiuis ou, 133. 

 Swede crops, damage to, in Eastern Britain, 81. 

 Sweet potato, saw-flj on, 74. 

 Sycamore, Coelocnerais californicus on, 262. 



Lyctiis striatiis on, 261. 



Phloeodes dinbolicus on, 262. 



T. 



Tares = Vicia sativa. 



Tea bushes, insecticide proposed for, 408. 



tree, Gracilaria tlieivora, 296. 

 Timothy, Dolerus on, 173. 

 Tobacco insects, in Florida, 288. 



monograph of insects on, 165. 



said to be attacked by Balaninus, 93. 

 Tomato, Epicauta lemniscataon, 395. 



Epitrix subcrinita on, 135. 



food-plant of Gortyna nitela, 140. 

 Torrubia ravenelii, mistaken for corn sprouts, 263. 



on white grub, 217. 

 Trefoil, Hyjionoraeuta sp. on, 66. 

 Trifolium, Darwin's expts, in fertilization of, 335. 

 Tripsaeum dactyloides, Diatraea saccbaralis on, 



103. 

 Triticum, food-plant of Toxoptera graminum, 245. 

 Turnip, damage to, in EastBritain, 81. 



Nysius angustatus on, 141. 



TT. 



Umbelhilaria californica, ladybirds on, 134. 

 Sinoxylon declive on, 260. 



V. 



Vicia sativa, Cecidomyiid on, 39. 

 ViBe, see Grape. 

 Violets, Oniscus Injuring, 401. 

 Vitis vinifera. Phylloxera on, 212. 



W. 



Walnut, food-plant of Zeuzera pyrina, 77. 

 injured by Datana angusii, 133. 



Wheat, Diabrotica 12-punctata on, 107. 



early accounts of insects on, 263. 



insects affecting, 357. 



saw-flies of, 168-179. 



Toxoptera graminum on, 245. 

 Willow, Capsidae on. 161. 



Coleoptera on, 66. 



damaged by Cimbex americana, 132. 



Dolerus on, 169, 172. 



parasites possibly bred from leaf -miner on, 253. 



Phloeodes diabolicus on, 262. 



plant-louse on, 213. 



Sciapteron tricincta on, 66. 



X. 



Xanthium strumarium, Rhodobaenus 13-puncta- 

 tus on, 159. 



Y. 



Yucca aloifolia, fruit edible, 359. 



angustifolia, pollinized by Pronuba yucca- 



sella, 369. 

 baccata, edible, 359. 

 Pronuba on, 371. 

 brevifolia, arboreal form, 360. 



polliniized by Pronuba synthetica, 370. 

 fllamentosa, Pronuba juccasella on, 369. 



structure of, 359. 

 fllifera, arboreal, 360. 

 Pronuba on, 371. 

 nectar apparatus of, 366. 

 Prodoxus larvae in all species, 372. 

 regal tree = Y. fllifera. 

 special Pronubas on, 371. 

 treculiana, special Pronuba on, 371. 

 whipplei, pollinized by Pronuba maculata, 

 367, 370. 

 Yuccas, fertilization of. 74, 359. 



Zea, food-plant of Toxoptera graminum, 245. 

 mays, food-plant of Diatreea saccharalis, 103. 



