844 



INDEX. 



Xyleborus fornicatior, sp. n., pre- 

 viously recorded as X. fornicatus, 

 572. 



Xyleborus fornicatus (Tea Shot-hole 

 Borer), in cinchona in Bengal, 85 ; 

 in Ceylon, 435, 540, 547 ; food- 

 plants of, in Dutch East Indies, 

 375, 572 ; manurial experiments 

 against, 540, 547 ; treated as a 

 new species, X. fornicatior , 572. 



Xyleborus grenadensis, intercepted 

 in mahogany in California, 90. 



Xyleborus inermis, X. xylographus 

 closely allied to, 328. 



Xyleborus morstatti, in coffee in East 

 Africa, 572 ; in coffee and oil 

 palm in Sumatra, 572. 



Xyleborus parviilus, in rubber in 

 Ceylon and East Indies, 368. 



Xyleborus per for an s (Shot-hole 

 Borer), in rubber in Ceylon and 

 East Indies, 368, 573 ; in sugar- 

 cane in West Indies, 166, 168. 



Xyleborus perparvus, sp. n., in 

 "'Bengal, 542. 



Xyleborus saxeseni, in North 

 America, 328 ; in various trees 

 in Britain, 562 ; distinct from 

 X. xylographus, 328. 



Xyleborus submarginatus, in Hevea 

 in Dutch East Indies, 573. 



Xyleborus xylographus , X. saxeseni 

 distinct from, 328. 



Xyleutes eucalypti, on wattle in 

 Queensland, 377. 



Xylia, Phyllochoreia on, in India, 

 152. 



Xylinades indignus, on rubber in 

 Ceylon, 165. 



xylographus, Xyleborus. 



Xylopertha picea, food-plants of, in 

 West Sudan, 27. 



Xyloterus [Typodendron) domestictis, 

 in oak and beech in Britain, 562 ; 

 in beech in Westphalia, 143. 



Xyloterus [Typodendron) lineaius, in 

 forests in Czecho-Slovalda, 487 ; 

 in Germany, 4, 60 ; in Pinus strobus 

 in Switzerland, 556. 



Xylotrechus, in hemlock in Penn- 

 sylvania, 457. 



Xylotrechus colonus, bionomics and 

 "control of, in U.S.A., 83, 168. 



Xylotrechus quadripes (Coffee Borer), 

 utilisation of parasites of, in Indo- 

 China, 384, 437, 520, 586; in 

 ]\Iysore, 40. 



Xylotrechus smei, in forests in India, 

 "369. 



Xylotrupes gideon, on Hevea brasi- 

 liensis in Dutch East Indies, 

 621. 



Xystrocera globosa, in West Sudan, 



28. 

 Xystrocera virescens, on Acacia spp. 



in Queensland, 377. 



Y. 



Yam, Phytorus dilatatus on, in 



Dutch East Indies, 176 ; pests of, 



in Jamaica, 167 ; Lagria viridi- 



pennis on, in West Sudan, 28 ; 



pests intercepted in, in U.S.A., 



71, 251, 358. 

 Yamataphis papaveris, sp. n., on 



Papaver sonmiferum in Fomiosa, 



408. 

 Yellow Cane Leaf-sheath Beetle 



(see Telephanus pallidus). 

 Yellow Pine, Western (see Pinus 



ponderosa) . 

 Yellow Stripe Disease (see Mosaic 



Disease). 

 Yellow Sugar-cane Aphis (see Sipha 



fiava.) 

 Yellow-neck Caterpillar (see Datana 



niinistra) . 

 Yellow-striped Army Worm (see 



Prodenia ornithogalli) . 

 Yellow-winged Locust (see Camnula 



pellucida) . 

 Yew [Taxus), pests of, in Germany, 



13, 497. 

 Yew Gall-midge (see Cecidomyia 



taxi) . 

 yezoensis, Tetraneura (see T. ulmi) . 

 y other si, Tetranychus. 

 Yponomeuta malinelliis (see Hypo- 



nomeuta) . 

 ypsilon, Agrotis. 

 Ypsolophus marginella (see Dicho- 



meris) . 

 Yucca, Pseudococcus virgatus inter- 

 cepted on, in California, 358. 



Zabrus gibbus, bionomics and con- 

 trol of, on cereals in Czecho- 

 slovakia, 17,438; feeding habits 

 of, in Germany, 551. 



Zabrus tenebrioides (see Z. gibbus) . 



Zabulon, spraying with, against 

 orchard pests, 19. 



zachrysa, Gracilaria. 



Zagrammosoma niultilineata, para- 

 site of Leucoptera coffeella in Porto 

 Rico, 535. 



Zaniesochorus, possibly parasitic on 

 Microplitis in India, 208. 



