684 



INDEX. 



Phifirusa, food-plant of Coccus 

 viridis in Dutch Guiana, 536. 



Phlegethontius (see Protoparce). 



Phleum pratense (see Timothy Grass) . 



Phloeosinus cristatus (Cypress Bark- 

 beetle), bionomics of, in California, 

 394, 463. 



Phloeosinus ciipressi (Cypress Bark- 

 beetle), bionomics of, in California, 

 394, 463. 



Phloeosinus thuyae, in cypress, para- 

 sitised by Trichopria hypobori in 

 France, 260. 



Phloeothrips oleae, Adelgimyza iri- 

 pidiperda on olive infested with, 

 in Italy, 160 ; on olives in Spain, 

 406. 



Phloeotribus cancasicus, in ash in 

 Russia, 106. 



Phloeotribus oleae (see P. scara- 

 baeoides) . 



Phloeotribus scarabaeoides (Olive 

 Beetle), on imported varieties of 

 olive in Palestine, 508 ; measures 

 against, in Spain, 324. 



phloxiphaga, Heliothis. 



phoenicis, Rhynchophorus . 



Pholus achemon (Grape-vine Sphinx 

 Moth), bionomics and control of, 

 in U.S.A., 94, 113. 



Phomopsis citri, intercepted on 

 citrus in California, 114, 181. 



Phora fasciata (see Aphiochaeta) . 



Phoradendron flavescens, Pseudo- 

 diaspis multipora on, in Cali- 

 fornia. 112. 



Phorbia brassicae (Cabbage Root 

 Maggot, Radish Maggot), in 

 Austria, 261 ; on cabbages in 

 Britain, 351 ; bionomics and 

 control of, in Canada, 2, 4, 281, 

 323, 362 ; in decayed potatoes 

 in Central Europe, 288 ; on 

 cabbages and cauliflower in 

 Holland, 199. 



Phorbia [Hylemyia) cilicrura, on 

 beans in Holland, 133 ; recorded 

 in error as H. fusciceps, 533. 



Phorbia (Pegomyia) fusciceps (Seed 

 Corn Maggot, Bean Maggot), in 

 Canada, 2 ; measures against, in 

 U.S.A., 22, 44, 188; species pre- 

 viously recorded as, in North 

 America, believed to be H. 

 cilicrura, 533. 



Phorbia lactucae, on lettuce, para- 

 sitised by Sarothrus areolatus in 

 Britain, 56. 



Phorbia rubivora (Raspberry Cane 

 Maggot), in British Columbia, 

 323 ; bionomics of, in Washing- 

 ton, 208, 459. 



Phorbia trichodactyla, in potatoes in 

 Central Europe, 288 ; on beans 

 in Germany, 289. 



Phorbia [Pegomyia) vicina (Beet 

 Leafminer), in Ontario, 2; number 

 of generations of, in Japan, 398. 



Phorocera claripennis, parasite of 

 Plathypena scabra in U.S.A., 391. 



Phorodon hmnuli (Hop Aphis), on 

 plums in Britain, 528 ; measures 

 against, in Germany, 266 ; Ron- 

 daniella phorodontis predaceous 

 on, in Italy, 159 ; experiments 

 with substitutes for nicotine 

 against, 400. 



Phorodon violae, sp. n., on pansy 

 in Natal, 447. 



phorodontis, Rondaniella. 



Phosgene, experiments with, as a 

 fumigant, 533. 



Phosphates, spreaders for lead ar- 

 senate not improved by addition 

 of, 372. 



Phosphoric Acid, dried locusts 

 containing, 251. 



Phosphuga, turnips not attacked by, 

 in Germany, 274. 



Phryganidia calif ornica (California 

 Oak Worm), bionomics and con- 

 trol of, in U.S.A., 278. 



Phryneta spinator (Fig and Willow 

 Borer), bionomics and control of, 

 in South Africa, 69. 



Phthorimaea atriplicella, on Atriplex 

 in Central Europe, 288. 



Phthorimaea heliopa, on tobacco in 

 Africa, 425 ; in Dutch East 

 Indies, 330, 540 ; in South 

 Rhodesia, 134. 



Phthorimaea ocellatella, on beet in 

 Morocco, 121. 



Phthorimaea operculella (Potato 

 Tuber Moth, Splitworm, Tobacco 

 Miner), on tobacco in Africa, 

 425 ; measures against, in Cyprus, 

 204 ; measures against, in France, 

 121, 489 ; in Hawaii, 136 ; on 

 potatoes in Morocco, 121 ; on 

 potatoes in Queensland, 155 ; on 

 tobacco in South Rhodesia, 134 ; 

 measures against, in U.S.A., 240, 

 402 ; habits of, compared with 

 those of P. heliopa, 540. 



Phthoropora carpella, on cacao in 

 Uganda, 243. 



Phycita diaphana, on castor-oil 

 plants in Morocco, 121. 



Phyllaphis, Neophyllaphis closely 

 related to, 151. 



Phyllaphis fagi, on beech in Britain, 

 59 ; on shade-trees in U.S.A., 

 247. 



