402 



Index 



Nothras — continued. 



truncatus, 387. 



varians, 247. 

 Notoglossa americana, 256. 

 Xototrachys canadensis, 252. 

 Xotoxus bifasciatus, 247. 

 Nuthatches, 12. 

 Nyctaginaceae, 183. 

 Xysius angustatus, 237. 







Oak, 192, 226, 243. 



Black, 173. 



Black-jack. (.See Black-jack Oak.) 



White, 17 7. 

 Oberea, 1.11. 



bimaculata, 1, 2, 3, 5, 8. 



texana, 1,5. 



tripunctata, 1, 2, 3. 4, 5, S, 12, 245. 



ulmieola, 1-14. 

 Ocyptera Carolina?, 252 

 Odontota dorsalis, 247. 



horni, 205, 246. 

 Odynerus dorsalis, 25 5. 



geminatus, 207, 255. 



pedestris, 2 54. 

 CEcanthus niveus, 235. 



pini, 235. 



4-punctatus, 222, 235. 

 CEdionychis thyamoides, 246. 



vians, 246. 

 CEdipodinae, 213, 221, 232. 

 Oenothera laciniata, 185. 



rhombipetala 160, 162, 163, 175, 179, 

 185, 190, 192. 

 Olethreutes climidiana, 206, 222, 2 50. 

 (See also Errata.) 



srparatana, 249 (see Errata). 

 Oligochaeta, 45-50. 

 Onagra, 222. 



biennis, 185, 224. 249, 246 (see Errata), 

 248 (see Errata), 249. 

 Onagracea?, 185. 



Onosmodium carolinianum, 176, 186. 

 Onthophagus hecate, 22 5, 244. 



pennsylvanicus, 225, 244. 



Oodes cuprasus, 241. 

 Opatrinus aciculatus, 247. 



notus, 205, 20S, 221, 247. 

 Ophiderma salamandra, 236. 

 Oppia bipilis, 369. 



canadensis, 384. 



corauta, 369. 



montana, 384. 



nitens, 372, 386. 



spinipes, 368. 384. 

 Opuntia, 243, 244. 



humifusa, 159, 160, 161, 162, 163, 169, 

 174, 175. 176, 178, 180, 185, 190, 

 192, 223, 238, 244, 251. 

 Orchelimum sp., 235. 

 Oribata. 341, 347, 349, 353, 380. 



affinis, 380. 



alata, 380. 



americana, 380. 



angustipes, 385. 



arborea, 354, 361, 380. 



armipes. 380. 



artilamellata. 354, 360-361, 380. 



banksi, 339. 340, 355, 364, 381. 



californica, 386. 



centro-americana, 381. 



clavilanceolata, 3S1. 



clavipectinata, 381. 



curva, 381. 



depressa, 381. 



emarginata, 354, 355, 381. 



fuscipes, 354, 360, 381. 



hirsuta, 381. 



illinoisensis, 355. 363-364. 381. 



imperfecta, 381. 



longiseta, 386. 



magna, 381. 



minuscula, 3 54, 359-360, 381. 



mcesta, 381. 



mollicoma, 341. 



multipilosa, 382. 



nitens, 353. 



nitidula, 3S2. 



octopunctata, 354, 356-357, 382. 



oralis, 353. 



pallida. 382. 



palustris, 382. 



