267 



Bombus — continued. 



impatiens, 56, 108, 111, 200. 



pennsylvanicus, 45, 46, 54, 56, 108, 

 109 111 199. 



separatus,'45, 46, 50, 52, 111, 163, 

 200. 

 Bombycid, 220. 

 Bombyliidae, 115, 185. 

 Bombylius, 186. 

 Borer, elm, 146, 154. 



flat-headed apjile-tree, 146. 



heartwood, 154. 



hickory, 147. 



locust, 145, 154. 



sugar-maple, 232. 

 Borers, wood, 99, 100. 

 Bothropolys multidentatus, 134. 

 Botrychium virginianum, 63. 

 Box 'elder, 143. 

 Brachycoma, 120. 



davidsoni, 200. 

 Brachynemurus abdomiiialis, 50, 51, 



ill, 165. 

 Bracon agrili, 144, 159. 

 Braconidse, 158, 190. 

 Branehiobdellidse, 66. 

 Brenthid, northern, 147. 

 Brontes dubius, 151. 

 Brown-tailed moth, 156. 

 Buck -brush, 63. 

 Buckwheat, climbing, 227. 

 Buflfalo, 118. 



Bug. ambush, 45, 46, 48, 50, 52, 53, 

 104, 174, 185, 189. 



chinch, 111, 114. 



flea negro-, 172. 



leaf-footed, 138. 



milkweed, see milkweed bug. 



plant-, see plant-bug. 



slender-necked, 135. 



squash-, 189. 



stinging, 174. 



stink-, 50, 51, 187. 

 Bulrush, 44, 103. 

 Bumblebee, false, 52, 54, 120, 200. 



impatient, 56, 200. 



Pennsylvania, 45, 54, 56, 199. 

 Bumblebees, 47, 117. 

 Buprestidfe, 144, 145. 

 Buprestis splendens, 142. 

 Burdock, 227. 

 Bush honeysuckle, 183. 

 Butterflies,"- 187. 

 Butterfly, cabbage, 56, 182, 186. 



celery, 45, 182. 



cresphontes, 225. 



eurytus, 65, 226. 



idalia, 45, 183. 



Butterfly — continued. 



milkweed, 45, 50, 183. 



philenor, 59, 61, 225. 



philodice, 45. 



portlandia, 65, 226, 



thoe, 53, 183. 



troilus, 59, 61, 225. 



turnus, 59, 225. 

 Butternut, 139, 146, 149, 227. 

 Buttonwood, 227. 



C 



Caberodes confusaria, 61, 229. 

 Cacalia, 171. 

 Calandridse, 181. 

 Callipus, 133. 



lactarius, 64, 134, 205. 

 Calloides nobilis, 148. 

 Calopteron, black-tipped, 64, 221. 



reticulate, 64, 222. 



reticulatum, 64, 126, 222. 



terminale, 64, 126, 221. 

 Calosoma, 140. 



scrutator, 59, 61, 124, 125, 132, 159, 

 220, 237. 

 Gambarus, 48, 50, 51. 



diogenes, 66, 128, 161, 204. 



gracilis, 45, 47, 48, 104, 108, 161. 

 immunis, 66, 205. 



propinquus, 66, 205. 

 Campanula americana, 63. 

 Camponotus, 147, 150, 209. 



herculeanus, 154. 



pennsylvanicus, 62, 202, 204, 221, 

 223, 228, 236. 

 ferrugineus, 62, 65, 220, 237. 

 Campostoma anomalum, 66. 

 Campylenchia curvata, 48, 170. 

 Cankerworms, 221. 

 Carabidae, 116, 130, 175, 221. 

 Cardinalis cardinalis, 220. 

 Carex, 44. 

 Carya, 124. 



aiba, 40. 



cordiformis, 57, 60, 63. 



glabra, 40, 57, 60. 



microcarpa, 228. 



ovata, 40, 57, 60, 124, 229, 230. 

 Catalpa, 148. 



hardy, 148. 

 Caterpillar-hunter, 59, 61, 220. 



carpenter, 154. 



gall, 184. 



rotten-log, 61, 150, 153, 154, 228. 



slug, 61, 140, 229. 



-wasp, short, 59, 62, 238. 

 Caterpillars, 164, 193. 



