401 



Western blister beetle, extraordiiiary abtUKliince 



in Cauiula, 289. 

 AVestwood, J. O., obituary of, 285. 

 "Wheat-head ■worm, in Kan.sa8. 115. 

 .stem maggot, iu Canada, ref.. 62. 

 stored, Gelecbia cerealella injurious to, 325. 

 Wlieeler, W. M., dissertation on insect embry- 

 ology, rev. of, .'!51. 

 AVhite fly, local name for Aleyvodi'.s eitri, 224. 

 grubs in Ohio, m., 296. 

 article on, ref., 75. 

 fungus disea.ses of 70. 

 l)est of sugar cane iu Queensland. 45. 

 Whitehead, Charles, insects injurious to croiis in 



England, rev., 293. 

 Wickhani, H. F., rev. of article by, 14:i. 271 . 

 Wielandy, J. P., ref., 356. 

 Wilcox, E. v., rev. of article by, 148. 

 Williston, S. W., rev. of articles by, 28(i. 

 Willistonia bicincta, characters of, 239. 



esuriens, characters of, 239. 

 Willistoniidic, characters of family, 239. 

 Wireworms, arsenical poisons useless against, 

 mm., 73. 

 in ()lii(),m.,296. 

 jil.mingagain.st. 74. 

 remedies experimented with. 74. 

 W^oodpecker, hairy, feeding on parsnip web-worni' 

 107. 

 red cockatoo, enemy of boll worm, 242. 

 Wren, house, as insect destroyer, 2()6. 

 destroy ing tent-caterpillars, 266. 



X. 



Xenos, habits of, 133. 

 Xijdiidium ensiferuni, m., 352. 

 X( ) dust, as an insecticide, m.. 73. 

 Xyleljorus, Uiales of, rev., 134. 



<Uspai', injuring fruit trees, 17. 



perforans, notes on, 277. 



relation of <ane disease to, 51. • 



Xyleborus "piceu8"= pubescens, 51, 



pubescens, correction, 51 . 

 Xylocopa, Monodontomerus parasitic on, IU, 

 Xylomiges, revision of, ref,, 140. 

 Xylotrechus nauticus, biologic notes on, 34, 35. 



Y. 



Yellow-legged clover weevil in England, m., 296. 

 fever tly, transmitter of contagion, mm., 210. 

 Yucca baccata, pollinated by Prounba yuccasella, 

 304. 

 brevif(dia. pollinate<l liy I'ronuba synthetica, 



304. 

 elata, pollinated by Pronuba yuccasella, 304. 

 insects and yucca pollination, art., 300. 



conclusions concerning, 308. 

 ]>(dlination, conclusions concerning, 308. 

 rupicola pollinated by Pronuba yuccasella, 



304. 

 wliipplei, capabh' of certain amount of self 

 fertilization. 302. 



description of, 301. 311. 



distribution of, 311. 



tloral characteristics of, 302. 



insects found upon. 312. 



insects visiting flowers, 301. 



on the pollination of, in California, art., 



311. 



pollinated by Pronuba niaculata, 312. 

 Yuccaborns, synopsis of, ref., 279. 



Z. 



,287. 



Zebra caterpillar, food-plants ( 



in Canada, ref., 62. 



on Pacific coast, 287. 



parasitised by Teleuomus n. sp., 289. 



Trit'hogramma pretiosa, 289. 

 Zeuzera pyrina, not abundant in Europe, 204. 

 Zygicua niinor, pha-ism in, 61. 

 Zygops, synopsis of, ref., 279. 



