INDEX. 



781 



Penthea solida, on wattle in Queens- 

 land, 378. 



Penthina variegana (see Argyroploce) . 



Pepper, Systena taeniata on, in 

 Canada, 420 ; Elasmognathus 

 hezvitti probably on, in Dutch 

 East Indies, 375 ; locusts on, in 

 Italy, 373 ; Lycophotia margari- 

 tosa on, in Mexico, 332 ; Macro- 

 siphmn solanifolii on, in New 

 York, 248. 



Peranabrus scabricollis (Coulee 

 Cricket), in Alberta, 139. 



perarticulata, Ficioniyia. 



peregrina, Pauridia ; Schistocerca 

 (see S. gregaria). 



Peregrinus niaidis (Corn Leaf hop- 

 per), bionomics and control of, in 

 Hawaii, 347, 513 ; on maize in 

 Jamaica, 166 ; relation of, to 

 mosaic disease, 347. 



perf oralis, Xylebonts. 



perforata, Saperda. 



pergandei, Parlatoria ; Trialenrodes 

 [Aleurodes] . 



Pergesa elpenor, on vines in Italy, 

 592. 



Pericallia ricini, on castor and yams 

 in Travancore, 85. 



Peridermiitm, bark-beetles associated 

 with, in Pinus longifolia in India, 

 487. 



Periderininm complanatuni, infesting 

 Pinus lofigifolia in India, 389. 



Peridermium strobi, infesting Pinus 

 strobus in Switzerland, 556. 



Peridroma niargaritosa (see Lyco- 

 photia) . 



Perilampus laevifrons, parasite of 

 Rhyacionia buoliana in France, 54. 



Perilitus, parasite of Sitona crinita 

 in British Isles, 474. 



Perilitus aethiops, parasite of Sitona 

 hispidula in British Isles, 473. 



Perilitus cerealium, parasite of Sitona 

 sulcifrons in British Isles, 474. 



Perilitus eleodis, parasite of Emba- 

 phion muricatum in U.S.A., 113. 



Perilitus rutilus, parasite of Sitona 

 hispidula in British Isles, 473. 



Periodical Cicada (see Tibicen sep- 

 temdecim) . 



Periphyllus formosamis, sp. n., on 

 Acer in Formosa, 409. 



periscelidactylus, Oxyptilus. 



Perkinsiella saccharicida (Sugar- 

 cane Leafhopper), in Hawaii, 29, 

 347 ; dusting experiments against, 

 29 ; relation of, to mosaic disease, 

 347. 



perniciosa, Plasiosciara. 



perniciosi, Prospaltella. 



perniciosus, Aspidiotus. 



Peronea niinuta, on cranberry in 

 New Jersey, 247. 



Peronospora, spray for, in Germany, 

 500. 



per parvus, Xyleborus . 



perplexus, Hamitermes. 



perpusilla, Pyrilla. 



perrisi, Estonoborus. 



Perrisia affinis, on violets in Den- 

 mark, 62 ; on violets in France, 

 267. 



Perrisia brassicae, on Brassica in 

 Czecho-Slovakia, 487 ; damaging 

 seeds of Crucifers in Denmark, 

 61 ; bionomics of, in Germany, 

 262. 



Perrisia laricis, on larch in Czecho 

 Slovakia, 486. 



Perrisia pyri (Pear Leaf-rolling 

 Midge), in Denmark, 62 ; in New 

 Zealand, 467. 



Persea carolinense (Red Bay), Trioza 

 magnoliae on, in Florida, 391. 



Persea gratissima (see Avocado). 



perseae, Acysta ; Conotrachelus ; 

 Gracilaria ; Heilipus. 



persearum, Aspidiotus. 



Persian Walnut [see Juglans regia). 



persicae, Myzus {Aphis, Myzoides, 

 Rhopalosiphum) . 



persicae-niger, A nur aphis. 



persicaecola. Aphis (see Myzus 

 persicae) . 



persicariae, Polia (Mamestra). 



pcrsicophila, Aphis (see Myzus 

 persicae) . 



Persimmon, Sannina uroceriformis 

 intercepted in, in California, 471. 

 (See Diospyros.) 



persuasoria, Rhyssa. 



Peru, Bruchus obtectus probably not 

 imported into France from, 427 ; 

 Lepidopterous larvae intercepted 

 in U.S.A. from, 71, 471. 



pervastatrix. Phylloxera. 



petiolicola, Riper sia. 



Petrol (Gasoline), spraying with, 

 against Coccids, 27 ; immersion 

 of apple stocks in, against Erio- 

 soma lanigermn, 414 ; less eco- 

 nomical than sodium arsenite 

 against grasshoppers, 289. 



Petrol (Gasoline) Torch, for des- 

 troying cotton-stainers, 297. 



Petroleum, against Coccids, 27, 

 344 ; eggs of Porthetria dispar 

 destroyed with, 263 ; uses of, 

 against Stephanoderes hampei, 

 507, 508, 551, 552, 602 ; effect of 

 various types of, in sprays against 

 Tortrix argyrospila, 134. 



