92 



Hornbeam defoliated by Ash-colored 



Elister-beetle, xxi, 140. 

 Horned Lark, xxiv, 149. 



Strawberry Spanvvorm, xiii, 61, 79, 

 179. 

 Horn-fly, xviii, XI 

 [orse chestnut, Cottonj Maple Scale on, 



xxiv, 103. 

 injured In Striped Cucumber-beetle, 

 xxi, 127. 

 Horse-nettle as food plant of adult 

 Southern Corn Root-worm, xviii, 

 148. 

 Corn Flea-beetle on, xxi, 118. 

 eggs of meadow grasshoppers in 



stems of, xxiii, 146. 

 infested by Potato Flea-beetle, xxi. 

 117. 

 by San Jose Scale, xxi, 42. 

 Horseradish, Agallia 4-punctata on, xxi, 



68. 

 Horseweed infested by Aphis middle- 



tonii, xxi, 161. 

 hortuellus, Crambus, xxiii, 42, 43. 

 Hothouse plants infested by Melon 

 Aphis, xxi. 81. 

 injuries to, by anguillulid, xvii, XII. 

 House-ant, Common. See under Ant. 

 House-fly fungus, xix, 19, 22. 

 Howard, L. O., xiii, 149; xiv, 66; xv, 

 50; xvi. 33. 69; xx, 18, 20; xxi, 

 26. 57, 61; xxiii, 103; xxiv, 103, 

 106. 

 and Marlatt, C. L., xx, 1. 

 howardi, Aspidiotus, xx. 15. 16. 

 Howard's Scale, xx. 16. 17. 

 Hubbard. H. G., xxi, 97. 



and Schwarz. E. A., xvi, 59. 

 Huber, Thomas, xviii, 13, 

 hudsonias, Systena, xxi, 114. 119: xxiii, 



190. 

 Hull, E. S.. Misc. Ess., 27; xv, 69. 

 Hulst, Geo. 1).. xvii. 29. 

 humaria, Cymatophora. xiii, 78. 

 humuli, Phorodon, xviii. 57. 

 Hungarian Grass as food plant of 

 Army-worm, xxiii, 49. 

 and breeding plant of Chinch- 

 bug, \v. 94 ; xvi. 52. 

 infested by Corn Rool aphis, xviii, 



61. 

 sowed as lure for deposition of 



eggs by Chinch-bug, xv, 9. 

 Timothy sowed with, as nrol 



acainst Chinch-bug injury, xv, 

 102. 

 Hunt, Thomas E.. xvi. 60, 62, 63. 

 Partial Economic Bibliograph 



dian Corn Insects, Misc. Ess., 57- 

 123. 

 Hyaliodes vitripennis a- enemy of leaf- 

 hoppers, xxi, 63. 



hybridus, Amarantus, xviii, 61. 

 Hydrocyanic acid gas, fumigation with, 

 to destroy San Jose Scale, xx, 24; 

 xx.. 25-26; xxii, 28-30, 31-44, 57. See 

 also under Orchard fumigation. 

 Hydrcecia nitela, xxiii, 44. 

 hyd'ropipcr, Polygonum, xiii, 82. 

 Hymenoptcra as strawberry insects, 

 xiii, 60, 61. 

 injuries to Corn by, xxiii, 8-9. 

 parasitic, xiii, 25, 29, 33. 92, 103, 183 

 xiv, 20, 94, 105, 110; Misc. Ess.,. 15 

 xv. 69. 84; xvii, 5, 44. 52; xviii, 124 

 xix, 46. 47. 53, 76, 79, 80; xx, 20 

 xxi. 101, 107, 109. 111. 112. 117, 153 

 xxiii, 22, 47; xxiv, 128, 136. 

 Hypena scabra as clover leaf-roller, 



xiv, 74. 

 Hyperaspis binotata as enemy of Cot- 

 tony Maple Scale, xxiv, 115. 

 signata. xiv, 33, 105. 



destroying e g gs ,,f Soft Maple Bark- 

 louse, xiv, 104; Misc. Ess., 25; 

 xv, 6. 

 Hyperchiria io, Misc. Ess., 62; xxiii. 



168-169. 230. 

 Hyphantria textor. infection experiment 

 with, xix, 46. See also Fall Web- 

 worm. 

 Hyooclopus mortipennellus, xxiii. 44. 95, 



97. 

 Hypostcna barbata as parasite of Yel- 

 low-Black Flea-beetle, xxi, 117. 



Icerya purchasi, xx, 22. 

 Ichneumon, xxi, 112. 

 flies as parasites of Corn Plant-louse, 

 xiv, 24, 30. 

 of Wheat-Bulb Worm, xiii, 25. 

 parasite of Apple Leaf-skeletonizer, 

 xv. 60. 

 of Leaf-crumpler, xv. 68. 69. 

 Ichneumonidae as parasites of Sulphur 



Leaf-roller, xiv. 20. 

 ilicis. Lachnosterna. xvii, 36. 37. 41, 47. 

 51 ; xviii. 113. 140. 144: xxiv. 137. 

 139. 140. 141. 143, 144. 140, 151. 152. 

 153. 

 Imbricated Snout-beetle. Misc. Ess., 

 lfts; xxi. 143-144; xxiii. 113-114. 231. 

 See also Epicaerus imbricatus. 

 imbricatus, Epicrerus. Misc. Ess.. 21. 



108; xvi. 7n; xxi, 143: xxiii. 113. 

 imbricornis, Prionus. Misc. Ess.. 102; 



xviii, 54, 146. 

 immaculata, Cyclocephala, xvii, 40, 45, 

 .,„,. 54. llii. 113. 1K-. 121; xx. 

 34: xxiv. 137. 

 Siphonophora Eragariae. xiii. 99. 

 imparis, Prenolepis, xxiii. 158. 



