798 



INDEX. 



carrot and celery in Denmark, 61 ; 

 in Nova Scotia, 131. 



Psila uniseta, in Britain, 105. 



Psilota, associated with termites in 

 Australia, 59. 



Psilota cyanea, sp. n., associated 

 with termites in Australia, 59. 



Psilura monacha (see Liparis) . 



pskovica, Anoecia. 



psociformis, Coniopteryx. 



Psyche atra, damaging pastures in 

 France, 266. 



Psylla, probably on cacao in San 

 Thome, 299. 



Psylla niali (Apple Sucker), in 

 British Isles, 366 ; in Canada, 21, 

 131, 199, 307, 561, 612 ; on apple 

 and pear in Denmark, 61 ; legisla- 

 tion against, in Nova Scotia, 435 ; 

 on apple in Queensland, 522 ; in 

 Russia, 117; distribution of, 307 ; 

 bionomics of, 307, 561, 612 ; 

 measures against, 199, 307. 



Psylla oleae (see Euphyllura olivina) . 



Psylla pyri, on pear in Holland, 509. 



Psylla pyricola (Pear Psylla), in 

 Bessarabia, 208 ; in Ontario, 420 ; 

 in U.S.A., 210, 211, 245, 325, 326, 

 610 ; bionomics of , 326 ; measures 

 against, 211, 245, 325, 326. 



Psylla pyrisuga, in Bessarabia, 598. 



Psyllaephagus cellulatus, sp. n., para- 

 site of Rhinocola populi in Meso- 

 potamia, 391. 



Psyllaephagus pachypsyllae, parasite 

 of Pachypsylla celtidis-gemma in 

 Maryland, 391. 



Psyllaephagus trioziphagus, parasite 

 of Trioza diospyri in U.S.A., 391. 



Psyllia (see Psylla) . 



Psylliodes, notice of key to Palae- 

 arctic species of, 55. 



Psylliodes affinis (Potato Flea- 

 beetle), in Germany, 442. 



Psylliodes attenuata, on hemp in 

 Germany, 18. 



Psylliodes chrysocephala, on rape in 

 Germany, 258 ; Ceuthorrhynchus 

 quadridens mistaken for, 145. 



Pteroconiniajacksoni, on Salix caprea 

 in Scotland, 351 ; ants associated 

 with, 351. 



Pterocomnia pilosa (see P. populeus) . 



Pteroconimapopuleus , on Salix caprea 

 in Scotland, 351. 



Pteromalus, parasites of gipsy and 

 brown-tail moths, 80. 



Pteromalus deplanatus, parasite of 

 Toririx viridana in British Isles, 

 237. 



Pteromalus larvarum, parasite of 

 Pieris in France, 266. 



Pteromalus puparum, parasite of 

 Pieris hrassicae in France, 359 ; 

 parasite of Pieris brassicae in 

 Germany, 261. 



Pteronidea pseudonotabilis, on 

 willows in Finland, 408. 



Pteronus ribesii (Gooseberry Sawfly), 

 in Alberta, 139 ; in British Isles, 

 611 ; in Czecho-Slovakia, 487 ; 

 possibly on gooseberry in Den- 

 mark, 62 ; in Germany, 19 ; in 

 U.S.A., 70, 403 ; natural enemies 

 of, 403, 611; measures against, 

 19, 70. 



Pterostichus madidus, probably pre- 

 dacious on \\ireworms in British 

 Isles, 78. 



Pterostichus scitulus, predacious on 

 Loxostege commixtalis in Colorado, 

 429. 



Ptilinus pectinicornis, in wood in 

 Britain, 383, 525 ; measures 

 against, 526. 



Ptinusfur, in stored flour in Czecho- 

 slovakia, 487 ; in Germany, 259 ; 

 in stored food-stuffs in New Zea- 

 land, 468 ; in stored cacao, 21. 



Ptinus tectiis, an introduced pest of 

 stored products in Germany, 443 ; 

 in stored cacao, 2 1 . 



pubescens, Camponotus ligniperda ; 

 Pityophthortis. 



Puccinea, infesting Cyperus rotundus 

 in Philippines, 348. 



pucialis, Megastes. 



pudibunda, Dasychira. 



puera, Hyblaea. 



Puffball (see Scleroderma vulgare) . 



Pufiball Beetle (see Caenocava ocu- 

 lata) . 



Pulastya acutipennis, on tea in 

 Ceylon, 165. 



pulchella, Utetheisa. 



pulchralis, Thynnus. 



pulicarius, Heterostomus. 



Pulses, pests of, in Britain, 11 ; 

 pests of, in India, 152, 200, 398, 

 399. 



Pulses (Stored), pests of, in British 

 Isles, 106. 



pulverulens, Symphyletes. 



Pulvinaria, on Citrus in Caucasus, 

 116. 



Pulvinaria brevicornis, on Avicennia 

 nitida in British Guiana, 101. 



Pulvinaria broadwayi (see Phil- 

 ephedra) . 



Pulvinaria iceryi, a minor sugar- 

 cane pest in Porto Rico, 97. 



Pulvinaria innujnerabilis , symbiotic 

 fungus associated with, 102. 



