INDEX. 



705 



Polyehrosis riteana, on vines in 

 America, possibly not distinct 

 from P. botrana, 472. 



Polycystomyia benefica, sp. n., para- 

 site of Agnmiyza phaseoli in 

 Australia, 387. 



Polycystus clypeatus, sp. n., para- 

 site of leaf- miner in St. Vincent, 

 121, 274. 



Polydesmus complanatus, on orna- 

 mental plants in Sweden, 151. 



Polydrosus flavipes, on fruit-trees in 

 Sweden, 148. 



polyglottus, Mirniis. 



Polygnotits, parasite of Mayeiiola 

 destructor in U.S.A., 304. 



polygonaph is, A phidius. 



polygoni, Antliomyia : Aspidaphis. 



Polygonum (Knot-grass or Door- 

 weed), Aspidaphis polygoni on. 

 in Colorado, 130 ; Anthomyia 

 polygoni on, in Switzerland, 368. 



Polygonum virginianum (Smart- 

 weed), food-plant of Popillia 

 japonica in New Jersey, 440. 



Polygraph-US poligraphus, in conifers 

 in Bosnia, 410; in Sweden, 89. 



Polygraphus rufipennis, in forests 

 in Canada, 541. 



Polygraphus trenchi, in Pimts gerar- 

 dinna in India, 522. 



Polyhedral Disease, experiments 

 with Lymantria dispar and, 566. 



polynesialis, Angitia. 



Polyammatus baetictis (see Lam- 

 pides). 



Polyphylla decemlineata, on straw- 

 berries in Canada, 85. 



Polyphylla fullo, food-plants of, in 

 Holland, 498, 499 ; new Dip- 

 terous parasites of, in Russia, 

 131 ; measures against, on vines 

 in Russia, 162. 



polyphyllae, Hyperecteina. 



Polypodium aureum, Lecanimn sig- 

 niferum on, at Kew, 59. 



Polyporus, Orchesia 7nicans bred 

 from, in France, 477. 



Polyporus shoreae, attacks of Dia/^KS 

 furtirus associated with, in India, 

 522. 



Pomegranate, wood-boring beetles 

 infesting, in Egypt, 50 ; Scirto- 

 thrips citri on, in U.S.A., 218. 



Pomelo (see Grapefruit). 



2)omi, Aphis ; Leptothyrium. 



pomonella. Aphis ; Cydia {Carpo- 

 capsa, Las'peyresia) ; Bhagoletis. 



j)omorum, Anthonomus ; Campoplex ; 

 Lepidosaphes (3Iytilaspis) ; Piin- 

 pla. 



Poncirus trifoliata, new Aphid on, 

 in Japan, 548. 



ponderosae, Dendroctonus ; Try- 

 podendron. 



Pongamia glabra, Stromatium bar- 

 batum on, in India, 519. 



Pontania gallicola, making galls 

 on willows in Britain, 41. 



Pontia rapae (see Pier is). 



Poonac (Oil-cake), Stored, pests of, 

 in Seychelles, 68. 



Popillia japonica, food -plants of, 

 and measures against, in New 

 Jersey and Japan, 205, 440. 



Poplar, pests of, in Britain, 42, 59, 

 276 ; pests of, in Canada, 361, 

 364 ; Lepidosaphes idmi on, in 

 France, 411 ; pests of, in Italy, 

 143 ; pests of, in Norwav and 

 Sweden, 148, 149, 150, 15l', 284; 

 Pemphigus bursarius on. in Swit- 

 zerland. 367 ; pests of, in U.S.A., 

 21, 205, 241, 290, 397, 416, 421, 

 457, 528, 552, 555 ; (see Populus). 



Poplar, Balsam (see Pojmlus bat- 

 sain if era). 



Poplar, Carolina (see Populus del- 

 toides). 



Poplar, Lombardy (see Populus 

 nigra italiea). 



Poplar AVeevil (see (Jryptorrhynehus 

 lapathi). 



populi, Melasoma (Chrysomela) ; 

 Sphinx. 



populicavlis. Pemphigus. 



populicola, Chaitophonis. 



populifolii, A rctaph is. 



populnea, Saperda. 



populneus, t'ladobius. 



Populus (Cottonwood), pests of, 

 in U.S.A., 195, 399, 528; (see 

 Poplar). 



Populus alba, Bhinoencyrtus male- 

 nottii, on, in Spain, 296. 



Populus angustifolia (Narrow-leafed 

 Cottonwood), winter host of Pem- 

 phigus beiae in Colorado, 310, 311. 



Populus balsamifera (Balsam Pop- 

 lar), Aegeria apiformis on, in 

 Sweden, 149 ; pests of, in U.S.A., 

 206, 242. 



Populus deltoides (Carolina Poplar), 

 pests of. in U.S.A., 218, 396, 

 421. 



Populus monilifera. pests of, in 

 U.S.A., 528. 



Populus nigra italiea (Lombardy 

 Poj)lar), pests of, in U.S.A., 

 218, 396, 457; not attacked by 

 Cryptorrhynchus lapathi in 

 U.S.A., 207. 



Populus tremula (Aspen), Lecaniu^n 

 zebrinum on, in Britain, 59. 



Populus tremuloides (American 

 Aspen), pests of, in U.S.A., 421, 

 528, 550. 



Populus trichoearp'a (Black Cotton- 

 wood), Buprestis gibbsi on, in 

 U.S.A., 421. 



