INDEX. 



165 



Woodpeckers, value of, in destroy- 

 iuij Cydia povionella in Russia, 

 255 ; destroying insect pests in 

 U.S.A., 175, 372; importance of 

 protection of, in U.S.A., 383. 



Wood Peewee, destroying Aegeria 

 piciipes, in Ohio, 372. 



Woodsage (see Teucrium scoro- 

 donia). 



wooduorthi, Myzocallis. 



Woollen Goods, destroyed by Der- 

 mestes cadaverinus in New ^outh 

 Wales, 10. 



Woolly Apple Aphis (see Eriesoma 

 lanifjerwm). 



Woolly Beech Aphis (see Phyllaphis 



fagi)' 



Woolly Pear Aphis (see Eriosoma 

 pyricola). 



Woolly Pyrol Moth (see Anticarsia 

 gemmatalis). 



Woolly WTiitefly (see Aleurothrixus 

 howardi). 



Wormwood (see Artemisia absin- 

 thium). 



Wyoming, lucerne pests in, 372. 



X. 



Xana nigra, gen. et sp. n., parasite 

 of Eriococcy,s greeni in Russia, 

 300. 



Xanthium canadense (Cocklebur), 

 insect pests on, in U.S.A., 141, 

 381. 



xanthius, Physothrips. 



Xanthogramma emarginata, pre- 

 daceous on Macrosiphum grana- 

 rium in U.S.A., 131. 



xanthonotus, Elis. 



Xanthopastis heteroenmpa, food- 

 plants of, in Brazil, 271. 



Xanthopastis tiiniais, on lilies in 

 Jamaica, 431. 



xanthopoides, Hoplandrothrips. 



Xanthorhoe praefednta, bionomics 

 and control of, on Phormium 

 tenax in New Zealand, 453, 525. 



xanthosticta, Odontria. 



xanthostomus, Syrphus. 



xanthura, Phorocera. 



Xestobium rufoviUosum, bionomics 

 of, in timber in Europe, 280. 



xiphidii, Paraphelinus. 



Xiphidium, - experiments with Coc- 

 cobacillus acridiorum and, in 

 Canada, 246 ; predaceous on 

 Tomaspis saccharina in Grenada, 

 268. 



Xiphidium fuscum, parasitised by 

 Paraphelinus locustarum, 502. 



Xiphidium varipen/ne, parasitised 

 by Paraphelinus xiphidii in Ha- 

 waii, 501. 



(C462) 



X.L.All, spraying with, against 

 Pegomyia hyoscyami, 403. 



X-ray Apparatus, use of, in con- 

 nection with the cinematograph 

 in economic entomology, 409. 



X-rays, against Lasioderma serri- 

 corne in U.S.A., 3. 



Xitthia sicana, predaceous on Dia- 

 pus furtivns in India, 263. 



Xyleborus, in citrus and Albizzia. 

 in Ceylon, 102 ; in mahogany 

 in Dutch E. Indies, 443 ; in 

 coconut in Jamaica, 429. 



Xyleborus abrupius, food-plants of, 

 in Seychelles, 240. 



Xyleborus coffeae, in coffee in Dutch 

 E. Indies, 443 ; bark -beetle allied 

 to, attacking cacao in Java, 

 143. 



Xyleborus cryptographus, in poplars 

 in Russia, 513. 



Xyleborus discolor, in Mestm ferrea 

 in India, 439. 



Xyleborus dispor, control of, in 

 fruit-trees in France, 373 ; in 

 apple in Italy, 180 ; in alders in 

 Russia, 513 ; bionomics and 

 control of, in Switzerland, 160 ; 

 bionomics and control of, in 

 U.S.A., 176, 310, 582. 



Xyleborus fornicatus (Shot-hole 

 Borer of Tea), bionomics and 

 control of, in Cevlon, 51, 102, 

 232, 282, 497, 498", 499 ; legisla- 

 tion against, i 32. 



Xyleborus interjectus, in Mesua 

 ferrea in India, 439. 



Xyleborus perforans, in coconuts in 

 Seychelles, 240. 



Xyleborus semigranosus, in Grevillea 

 in Ceylon, 498 ; food-plants of, 

 in Seychelles, 240. 



Xyleborus semiopacus, in Grevillea 

 in Ceylon, 498. 



Xylechinus pilosus, in conifers in 

 Russia and Siberia, 513, 514. 



Xylia dolabriformis, Pachydissus 

 parvicollis in, in India, 439. 



Xylina, on apples and pears in 

 U.S.A., 328, 329. 



Xylina bethunei (see Graptolitha). 



Xylina curvimacula, on apples in 

 Nova Scotia, 344. 



Xylina nupera, on apples in Nova 

 Scotia, 344. 



Xylobiops basilaris, in pecan in 

 Georgia, 385. 



Xylococcus alni, sp. n., on alder in 

 U.S.A., 425. 



Xylococcus macrocarpae, on Cupres- 

 sus macrocarpa in U.S.A., 424. 



Xylococcus quercus, on Quercus 

 chrysolepis in U.S.A., 425. 



Xylocopa orpifex, bionomics of, 

 in U.S.A., 139. 



