440 
Sunflower, Diabrotica longicornis on, 133. 
Swede crops, damage to, in Eastern Britain, 81. 
Sweet potato, saw-fly on, 74. 
Sycamore, Ceelocnemis californicus on, 262. 
Lyctus striatus on, 261. 
Phleodes diabolicus on, 262. 
ay: 
Tares — Vicia sativa. 
Tea bushes, insecticide proposed for, 408. 
tree, Gracilaria theivora, 296. 
Timothy, Dolerus on, 173. 
Tobacco insects, in Florida, 288. 
monograph of insects on, 165. 
said to be attacked by Balaninus, 93. 
Tomato, Epicauta lemniscata on, 395. 
Epitrix subcrinita on, 135. 
food-plant of Gortyna nitela, 140. 
Torrubia ravenelii, mistaken for corn sprouts, 263. 
on white grub, 217. 
Trefoil, Hyponomeuta sp. on, 66. 
Trifolium, Darwin's expts, in fertilization of, 335. 
Tripsacum dactyloides, Diatrza saccharalis on, 
103. 
Triticum, food-plant of Toxoptera graminum, 245. 
Turnip, damage to, in EastBritain, 81. 
Nysius angustatus on, 141. 
lave 
Umbellularia californica, ladybirds on, 134. 
Sinoxylon declive on, 260. 
Ve 
Vicia sativa, Cecidomyiid on, 39. 
Vine, see Grape. 
_ Violets, Oniscus injuring, 401. 
Vitis vinifera, Phylloxera on, 212. 
Wi. 
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. 
Phlceodes diabolicus on, 262. 
plant-louse on, 213. 
Sciapteron tricincta on, 66. 
| 
| 
| 
| Xanthium strumarium, Rhodobenus 13-puncta- 
| tus on, 159. 
Xe 
ve 
Yucea aloifolia, fruit edible, 359. 
angustifolia, pollinized by Pronuba yucca- 
sella, 369. 
baecata, edible, 359. 
Pronuba on, 371. 
brevifolia, arboreal form, 360. 
polliniized by Pronuba synthetiea, 370. 
filamentosa, Pronuba yuccasella on, 369. 
structure of, 359. 
filifera, arboreal, 360. 
Pronuba on, 371. 
nectar apparatus of, 366. 
Prodoxus larve in all species, 372. 
regal tree = Y. filifera. 
special Pronubas on, 371. 
treculiana, special Pronuba on, 371. : 
whipplei, pollinized by Pronuba maculata, 
367, 370. 
| Yuceas, fertilization of, 74, 359. 
Z. 
Zea, food-plant of Toxoptera graminum, 245. 
mays, food-plant of Diatrzea saccharalis, 103. 
