157 



Wireworms — Continued. 



determination of life history and spp. 

 of, affecting Corn in Illinois, Misc. 

 Ess, 17. 

 discussions of, cited, xiii, 143 ; xxiii, 69. 

 experiments with insecticides for, 



Misc. Ess., 18. 

 generic synopsis of, xviii, 31-32. 

 injuries by, Misc. Ess., 19; xviii, 8, 21, 



28, 29; xxi, 162. 

 life history of. Misc. Ess, 17; xviii, 



30; xxi, 162-163. 

 natural enemies of, xviii, 47. 

 preventive and remedial measures 

 against, xviii, 48-51 ; xxi, 163. 

 Wistaria, Cottony Maple Scale on, xxiv, 

 103. 

 frutescens, Lerema accius recorded 

 from, xxiii, 166. 

 W-marked Cutworm, Misc. Ess, 68; xvi, 



85-«6; xxiii, 31-32, 232. 

 Wood Thrush as enemy of wireworms, 

 xviii, 47. 

 June-beetles eaten by, xviii, 123. 

 Woodpecker as enemy of Fruit-Bark- 

 beetle, xvii, 4. 

 June-beetles eaten by, xviii, 123. 

 Woods. Chas. D., xxi, 57. 

 Woodworth, C. W, xviii, 161; xxii, 31, 



32, 67. 

 Woodworth, H. O.. xx, v. 

 Woolly Aphis, xvii, XIII; xxii, 99. 100, 

 103, 104, 106-107. 

 destruction of, xxii, 107. 

 distribution of, xxii, 107. 

 eggs of, xxii, 99. 

 gasoline blast-lamp used against, 



xxiv, 51. 

 identification of injury bv, in winter, 



xxii, 104. 

 injury to Apple by, xxii, 99, 106. 

 protection against, xxii, 107. 

 reproduction and spread of, xxii, 

 106. 

 Rear pupae, infection experiment with, 



xix, 80. 

 Beard-grass, Lerema accius recorded 



from, xxiii, 166. 

 bears, xxiii, 70-77, 230. 

 as beet insects, xxi, 50. 

 general discussion of three species 



of, xxi, 156-158. 

 gasoline blast-lamp used against, 

 xxiv, 51. 

 Grass Root-louse, xviii, 53, 104-106. 



Xabea, xxiii, 213, 216. 

 bipunctata, xxiii, 219. 



Xanthium strumarium as food plant of 

 Garden Web-worm, xxiii, 90. 

 infested by Sorghum Mealy Bug, 

 xviii, 107. 

 xanthographus, Naupactus, xvii, 81. 

 xanthomelaena, Disonycha, xxi, 114, 116, 



117. 

 Xiphidium, xxi, 136. 



brevipenne, xxiii, 147-148. 



fasciatum, xxiii, 147-148. 



general description of two species of, 



xxi, 131. 

 nemorale, xxi, 131 (Errata), 136; 



xxiii, 147-148. 

 strictum, xxi, 131, 136; xxiii, 147-148. 

 Xyleborus pyri, xvii, 2. 

 Xylopinus saperdioides infested by 

 Sporotrichum globuliferum. xix, 26 

 (Errata). 



Yarrow, Wild, infested by Beet Aphis, 



xxi, 159. 

 Yellow Ant, Small, xiii, 60, 61, 112-113. 

 See under Ant, Small Yellow. 

 Bear, Misc. Ess, 60; xxi, 146, 156-158; 



xxiii, 72, 226, 230. 

 -Black Flea-beetle, xxi, 114. 116 (Er- 

 rata. 175). 

 Cranberry-worm, xv, 78. See also 



Apple Leaf-roller, Lesser. 

 Grasshopper, xxi, 130, 131. 

 -headed Cutworm, Misc. Ess, 74; xvi, 



97; xxiii, 21, 231. 

 Sorghum Flant-louse, xiii, 53 ; xxiii, 



210-211. See Chaitophorus flavus. 

 -striped Flea-beetle, xiii, 62. 

 calendar of, xiii, 179. 

 (See Flea-beetle, Broad-striped, 

 and Pale-striped.) 

 Thistle as natural food plant of Lep- 

 toglossus phyllopus, xxiii, 197. 

 ypsilon, Agrotis, Misc. Ess, 71 ; xvi, 85 ; 

 xxi, 102, 104; xxiii, 17, 21. 

 Biston, xiv, 95. 



zeae, Achatodes, Misc. Ess, 78; xxiii, 7, 

 10, 85. 



Anthomyia, Misc., Ess, 91 ; xviii, 8, 

 16 (Errata) ; xxiii, 70. 



Ephestia, Misc. Ess, 91. 



Sphenophorus, xvi, 61, 62. 

 zeas, Anthomyia, xviii, 17. 

 Zebra-caterpillar, xxi, 51, 146, 153-154; 



xxiii, 171, 227. 

 zeellus, Crambus, xiv, 12; Misc. Ess, 87; 



xvi, IX; xxiii, 38, 42, 153, 155. 

 Zeller, P. C, xv, 65. 



