110 



oblineatus, Capsus, xiii, 116. 

 oblinita, Acronycta, xxiii, 170. 



Apatela, xiii, 61, 82; xiv, 117; Misc. 

 Ess., 63. 

 Oblique-banded Leaf-roller, xiii, 61, 94- 



95, 179; xiv, 109. 

 oblongifolia, Orchelimum, xxiii, 144, 



145. 

 obscura, Prodenia autumnalis, xiv, 57. 

 Obscure Scale, xx, 16. 

 obscurus, Aspidiotus, xx, 15, 16; xxi, 

 31. 

 Plagiognathus, xxi, 87, 89; xxiii, 201, 



233. 

 Tenebrio, Misc. Ess., 106. 

 obsoletana, Cacoecia, xiii, 61, 92, 95. 

 obtusa, Empoasca, xxi, 78. 

 occidentalis, Forda, xviii. 53, 57. 95. 

 ochreus, Sphenophorus, xvi, XII, 58, 59, 

 63, 66, 67, 68, 70, 71; xxii, 1, 9, 19; 

 xxiii, 52, 229. 

 ochrogaster, Euxoa, xxiii, 17, 34. 

 8-lineata, Gypona, xxi, 66, 72. 

 Odontocera dorsalis mining leaves of 

 Corn, xxiii, 165. See also Ceratomyza 

 dorsalis. 

 Odynerus foraminatus, an entomologic- 

 al train-wrecker, xx, 103-105. 

 reniformis, concerning life history 

 and habits of, xx, 104. 

 CEbalus pugnax, injuries bv, xxiii, 194— 



195. 

 CEcanthinae, xxiii, 215-222. 

 CEcanthus, xxiii, 213, 216, 219. 

 angustipennis, determination of food 

 of, xxiii, 220. 

 distinctive characters of, xxiii, 218. 

 situations found in, xxiii, 217. 

 food of, xxiii, 219. 

 forbesi, distinctive characters of, xxiii, 



217. 

 latipennis, xxiii, 146. 



distinctive characters of, xxiii, 218. 

 egg punctures of and oviposition by, 



xxiii, 216. 

 in corn fields, xxiii, 217. 

 nigricornis, determination of food of, 

 xxiii, 221. 

 distinctive characters of, xxiii, 218. 

 eggs of, xxiii, 215. 

 in corn fields, xxiii, 217. 

 niveus, distinctive character- ol, xxiii, 

 217. 

 situations found in, xxiii, 217. 

 pini, determination of food of, xxiii, 

 222. 

 distinctive characters of. xxiii, 218. 

 4-punctatus. determination of food of, 

 xxiii, 220-221. 

 distinctive characters of, xxiii, 218. 

 situations found in, xxiii, 217. 



(Edemasia concinna, xvii, XIII. 

 CEnothera biennis as food plant of 

 Scelodonta pubescens, xiii, Addenda, 

 II ; xiv, 81. 

 CEstlund, O. W.. xviii. 94; xxi, 83. 

 Oglesby, Richard J., xiv. Appendix V. 

 Okra as food plant of Ear-worm, xxiii, 

 67. 

 infested by Oncometopia undata, xxi 

 71. 

 Old-fashioned Potato-beetle. See Blis- 

 ter-beetle, Striped, 

 oleracea, Portulaca, xviii, 61. 

 olivacea, Campylacantha, xxi, 130, 135 ; 



xxiii, 213, 229. 

 olivaceus, Pezotettix, xxi. 135. 

 Olive, or Lubber, Grasshopper, or Lo- 

 cust, habits and life history 

 of, Misc. Ess., 49. 

 injuries by, Misc. Ess., 48, 50- 



51. 53; xxi, 132; xxiii, 67. 

 situation of eggs of. and de- 

 struction of same by natural 

 enemies, Misc. Ess., 52-54. 

 Olivier, A. G. xvi, 60. 

 Omophron beetles, xxiii, 178. 



labiatum, Misc. Ess., 92; xxiii, 178. 

 227. 

 Oncometopia, xxi, 64. 



undata. xxi, 66. 70-71, 75; xxiii, 204. 



Onion as food plant of Army-worm, 



xxiii, 49. 



of Clay-backed Cutworm, xxiii. 



29; destroyed by same. xvi. 



84. 



of Common Striped Cutworm, 



xxiii, 34. 



of Garden Web-worm, xxiii, 90. 



of Seed-corn Maggot, xxiii, 70. 



of Variegated Cutworm, xxiii. 



24. 



destroyed by Spilosoma virginica, xiv, 



116. 

 injured by Dark-sided Cutworm, xxiii, 

 33. 

 by Imbricated Snout-beetle, xxi, 



'143; xxiii. 113. 

 by iulids, xiii, 140. 

 by Stalk-maggot, xxiii. 165. 

 Onions injured by White-grubs, xx. 29. 

 subject to attack bv wireworms, xviii, 

 30. 

 Oniscidre, xxi, 137. 

 Onthophagus hecate eating grains of 



Corn in field, xxiii, 183. 

 opaca, Silpha, xxi, 136. 137. 

 opacicollis, Paria, xiii, 159. 

 Ophion bifoveolatum as parasite of 

 White-grubs, xviii. 125; x.xiv, 161. 

 sp. as parasite of cutworms, xxi, 101. 

 of White-grubs, xvii. 44. 52. 



