600 



Index 



Pine, 143, 155. 

 yellow, 156. 

 Pipilo erythrophthalmus erythroph- 



thalmus, 296. 

 Piranga erythromelas, 296. 



rubra rubra, 296. 

 Pitcher-plant, 195. 

 Plagionotus speciosus, 156, 232. 

 Planesticus migratorius migratorius, 



287, 297. 

 Plankton, 557. 

 Planorbis, 161. 

 Plantain, 227. 

 Plant-bug, dusky, 174. 



tarnished, 45, 175, 218. 

 Plant-lice, 42, 47, 51, 107, 112, 162, 164, 



165, 169, 174, 176, 188, 230. 

 Plant-louse, milkweed, 171. See also 



Aphis asclepiadis. 

 Platydema ruficorne, 136. 

 Platymetopius frontalis, 48, 171. 



Platyphora, 355. 



coloradensis, 354, 355. 

 eurynota, 354, 355. 

 flavofemorata, 353-354, 355. 

 lubbocki, 355. 

 schwarzi, 355. 



Platyptera, 208. 

 Platypus, 137. 

 Pleurotus, 429, 437, 532. 



elm, 530. 



ostreatus, 419, 432, 528. 



ulmarius, 530. 

 Plover, upland, 302. 

 Plum, 141, 198, 219, 229. 



sugar, 228. 

 Pluteolus, 437. 



Pluteus, 437. 



cervinus, 432, 486. 

 fawn-colored, 486. 



Pogonamyia alpicola, 356, 357. 



aterrima, 357. 



flavinervis, 356-357. 

 Poison-ivy, 299. 

 Pokeberry, 299. 

 Polioptila caerulea caerulea, 297. 



Polistes, 48, 49, 187. 

 pallipes, 110. 

 variatus, 110, 121, 193. 



Polydesmidae, 205. 

 Polydesmus, 61, 150, 205. 



serratus, 134. 

 Polyergus lucidus, 192. 

 Polygonia, 126, 138. 



interrogationis, 225. 

 Polygonum, 183, 



convolvulus, 227. 

 Polygraphus rufipennis, 156. 

 Polygyra albolabris, 58, 201. 



clausa, 61, 201, 202, 204. 

 Polylepta leptogaster, 324. 



Polyporus, 126, 136, 224, 538. 

 branched, 536. 

 froiulosus, 536. 

 sulphureus, 536. 

 tomentosus, 136. 

 volvatus, 137. 



Pomace-fly, 104. 

 Pomoxis annularis, 567. 



sparoides, 567. 

 Pompilidae, 194. 

 Pompilus, 238. 

 Pontia protodice, 174. 



rapae, 56, 182, 186. 

 Poplar, 106, 149. 



Carolina, 105, 106. 

 Populus, 106, 149. 



deltoides, 44, 103, 105, 283. 

 Porthetria dispar, 156. 

 Porzana Carolina, 285. 



Potato, 179, 224. 



-beetle, old-fashioned, 52, 180. 

 wild sweet, 178. 



Prairie chickens, 302. 



dog, 100. 

 Prickly ash, 60, 63, 138, 179, 183, 217, 



225. 

 Priocnemis unifasciatus, 193. 

 Priocnemoides unifasciatus, 19.S. 

 Priononyx atrata, 195. 

 Prionoxystus robiniae, 144, 154. 

 Prionus imbricornis, 152. 



