696 



INDEX. 



Peridroma saueia (see Lycophotia 

 margaritosa). 



Perilampus laevifrons, parasite of 

 Cydia pomonella in France, 191. 



periliti, Otacustes. 



Perilitus, parasite of Eleodes sutura- 

 lis in U.S.A., 308. 



Perilitus americanus, synonym of 

 Dinocampus terminatus, 352. 



Perilitus eleodis, parasite of Eleodes 

 in U.S.A., 309. 



periscelidactyhis, Oxyptilus. 



Perissocentrus argentinae, estab- 

 lishment of, against Oeceticus 

 platensis in Argentina, 316. 



Perissocentrus argentinae var. 

 caridei, establishment of, against 

 Oeceticus platensis in Argentina, 

 316. 



Peritelus grise^is, on vines in Europe, 

 172. 



Peritelus senex, on vines in Europe, 

 172. 



Peritelus subdepressus, on vines 

 in Europe, 172. 



periusalis, Pachyzancla. 



perkinsi, Pteroptrichoides. 



Perkinsiella saccharicida (Sugar - 

 cane Leaf-hopper), establishment 

 of parasites of, in Hawaii, 275, 

 351. 



perla, Chrysopa. 



perniciosi, Prospaltella. 



perniciosus, Aspidiotus. 



Pernicious Scale (see Aspidiotus 

 perniciosus). 



Peronea minuta (Yellow-head Fire- 

 worm), bionomics and control of, 

 on cranberries in U.S.A., 561. 



perpallida, Euribia. 



Perrisia brassicae (Cabbage Gall- 

 midge), on cruciferous plants in 

 Germany, 344. 



Perrisia chrysopJiyllae, sp. n., on 

 olives in Eritrea, 531. 



Perrisia crataegi, on hawthorn in 

 Italy, 144. 



Perrisia flosculorum, on clover in 

 Sweden, 150. 



Perrisia panteli, on oak in Britain, 

 247. 



Perrisia proxima, sp. n., on olives 

 in Eritrea, 531. 



Perrisia pyri (Pear-leaf Gall- 

 midge), on pears in Norway and 

 Sweden, 150, 285 ; parasitised 

 by Inostemma piricola in Spain, 

 113 ; in Switzerland, 367. 



Perrisia strobi (Spruce-seed Midge), 

 on spruce in Britain, 158 ; bio- 

 nomics of, on spruce in Sweden, 

 90, 91, 92, 333.- 



Perrisia vaccinii (Cranberry Tip- 

 worm), bionomics and control 

 of, in U.S.A., 553, 562. 



Perrisia verrucosa, sp. n., on olives 



in Eritrea, 531. 

 perroudi, Pogonoehaerus. 

 Per sea gratissima (see Avocado 



Pear). 

 perseae, Chrysomphalus ; Paraleu- 



rodes. 

 persicae, Aphis ; Eulecaniurn (Le- 



canium); Myzus {Bhopalosiphum). 

 persicae-niger, Anuraphis (Aphis), 

 persicaeella, Gelechia (see 6'. con- 



fusella). 

 persicorum, Anthomyia. 

 Persimmon, Ceratitis capitata on, in 



N. Africa, 39 ; pests intercepted 



on, in California, 253, 293 ; 



Kahivoria flavofasciata on, in 



Japan, 449. 

 personatus, Geroplastes ; Chrysom- 

 phalus (Aspidiotus). 

 perspieillata, Gampiglossa. 

 Peru,- Trypopremnon sanfordi on 



potato from, intercepted in 



U.S.A., 254. 

 Pescadores, food-plants of Halticus 



minutus in, 503. 

 Petalostemon violaceus, new scale- 

 insects on, in Kansas, 546. 

 petiolata, Exorista. 

 petiolatus, Omphalchrysoeharis. 

 Petrol, injection of, into nests of 



Cnethocampa processionea, 170. 

 Petroleum, for destroying ants, 



404, 497 ; and sand, as a repel- 

 lent for flea-beetles, 498 ; for 



trapping insects, 367, 401, 423 ; 



useless as a trap for Epochra 



canadensis, 293. 

 Petroleum Emulsion, formulae for, 



73, 80, 316, 411, 469; against 



Aphids and Coccids, 55, 316, 411 ; 



and Bordeaux mixture, 80 ; 



spraying with, against Tetrany- 



chus telarius, 449. 

 Petroleum Insecticides, selection of, 



from a commercial aspect, 26,. 



291. 

 Petroleum Soap, spraying with, 



against Eurydema oleraceum, 5 ; 



spraying with, against Papilio 



idaeus, 501. 

 pettiti, Phenacoccus (see P. stachyos). 

 Pezomachus, hyperparasite of Apan - 



teles lacteicolor in U.S.A., 512. 

 Pezomachus agilis, hyperparasite of 



Microgaster connexus in Britain, 



382. 

 Pezomachus instabilis, parasite of 



(joleophoraftiscidinella, in Sweden, 



94. 

 pfeijferi, Elis. 

 Phaedon cochleariae, on horse-radish 



in Sweden, 147. 

 Phaenobremia, predaceous on Ajyhis^ 



mali, in Britain, 247. 



