INDEX. 



501 



PentatoinidfP, 6. 



ccpcal structures in, 1, 2. 

 pereinptalis. Hydrocainpa. 180. 

 Pergande, Theo., 382. 

 Peribalus, 6. 



Peridioium tahulatum, 314. 

 Perissopterus pulchellus as para- 

 site of Aspidiotus 

 forbesl, 382 

 as parasite of Chionaspis 

 americana, 393. 

 Perlid, 159. 



Petti t, R. H., 385, 392. 

 Phalacrocera, 19fi. 

 Piaanurus, 274, 275, 276. 

 tabaoi, 276. 



tabanivorus, 245, 272, 274. 

 Philadelphia Academy of Natural 

 Sciences, Proceed ings of, cited, 

 254, 289. 

 philadelphicus, Pompilus, 272. 

 Philhydrus, 163. 

 phragmitidicola. Helio; hila, 9. 

 Phryganeidte, 162. See Case-flies. 

 Phymata, 6. 

 Physcus varicornis as parasite of 



Chionaspis americana, 393. 

 pilimana, Odontomyia, 255, 256. 

 pilosulus, Alydus, 5. 

 plebeja, Odontomyia, 255, 256. 

 Plecoptera, 163. 

 plenilinealis, Paraponyx, 173. 

 Plum infested by Aspidiotus 



forbesi, 381. 

 Podocopa, characters of, 421. 

 Podura, 156. 



Poling, O. C, on eggs of Prothon- 

 otary Warbler, 31. 

 on Golden Swamp War- 

 bler, 15. 

 on nesting of Prothono- 

 tary Warbler, 26, 31. 

 Polygonum incarnatum as food 

 plant of Pyrausta nelum- 

 bialis, 182. 

 Polyncma natans, 270. 



Polyodon folium. Some Notes on 

 the Drain and Pineal Struct- 

 ures of, 298-309. 

 polyrhiza, Spirodela. See Errata. 

 Pompilidie, 157, 272. 

 Pompilus biguttatus, 272. 

 n. sp.?, 272. 

 philadelphicus, 272. 

 Poplar. 267. 



Potamocypris, 429, 471. 

 fulva, 471. 

 gregaria, 471. 

 Potamogeton, 152, 168. 



nutans, 167, 176, 179, 270. 

 Pratt, W. E., on distribution of 

 I'rithonotary Warbler, 17, 18. 

 Pristina leidyi, 396-402. 



longiseta compared with P. 

 leidyi, 396, 398. 

 Proceedings Boston Society of 

 Natural History cited, 242. 

 Philadelphia Academy of Nat- 

 ural Sciences cited, 254, 

 289. 

 Proctotrypidffi, 271, 274-276. 

 proprialis, Hydrocampa, 176. 

 Prospalta aurantii as parasite of 

 Aspidiotus forbesi, 382. 

 murtfeldti as parasite of As- 

 pidiotus sesculi, 388. 

 as parasite of Aspidiotus 



forbesi, 382. 

 as parasite of Aspidiotus 

 ulmi, 390. 

 Prothonotary Warbler in Illinois, 

 Life Uistory and Distri- 

 bution of the, 10-35. 

 albinism of eggs of, 29. 

 breeding places of the, 23. 

 coloration of eggs of, 28. 

 departure of the, in fall, 20. 

 deposition of eggs of the Cow- 

 bird in nest of, 31, 32. 

 eggs of. 27-32. 

 enemies of, 32. 

 food habits of, 23. 

 incubatinri of eggs of, 27, 30. 



