830 



INDEX. 



Xylotrechus qitadyipcs (Coffee Borer), 

 measures against, in India, 68 ; 

 parasites of, in Tonkin, 95, 295, 

 431, 508, 510 ; -Y. javanicus pro- 

 bably identical witli, 508. 



Xylotrechus sappJio, considered a 

 synonym of A', javanicus, 508. 



Xylotyupcs, probably attacking oil 

 palms in Belgian Congo, 495 ; 

 in Dutch East Indies, 46. 



Xvloti'Upes i^idcon, on Poi)iciana 

 rcjiiam India, 426 ; parasitised by 

 Triscolia yubiginusci in Dutch East 

 Indies, 47. 



Xysticus fcyox, destroying Sapeyda 

 cyetata in U.S.A.. 200. 



Y. 



Yam, pests intercepted on, in Cali- 

 fornia, 44 ; Palacopus costicollis 

 intercepted in, in Elorida, 104 ; 

 ants intercepted in, in Hawaii, 

 172 ; Aspidiotus hartii on, in 

 West Indies and Panama Canal 

 Zone, 304, 429, 504; A. haytii 

 intercepted on, in Porto Rico, 

 572 ; in rotation of crops against 

 Tomaspis saccliayiiia in Trinidad, 

 263 ; (Stored), measures against 

 insects in, in Eiji, 481. 



Yam Scale (see Aspidiotus haytii). 



Yam Weevil (see Palacopus costi- 

 collis) . 



yainamai, Boinbyx. 



y anon is, Nipponaphis. 



Y^ellow Mite (sec Tarsonemus iyaiis- 

 luccns). 



Yellow Mould (seeAspeygillusflavus). 



Y^ellow Pine (see Pinus pondeyosa) . 



Yellow Poplar Scale (see Tourney ella 

 liyiodciidyi). 



Y'ellow Whitcily-fungus (see Aschey- 

 soniaflavocityina). 



Y'ellow - necked Caterpillar (see 

 Datana ministya). 



yeybasantae, Pseudococcus. 



yoshidae, Coccophagus. 



Yothers' Oil Emulsion, 332. 



ypsilon, Agyotis. 



Ypsolophus ligulella {ace Dicho))icyis) . 



yucatcca, Liodeyma. 



Yucca, Scyphophorus acupunctatus 

 on, in U.S.A. and Haiti, 299. 



z. 



Zahyiis gibbus, on cereals in Den- 

 mark, 193, 363. 



Zabulon, spraying experiments with . 



against Cydia pouionclla, 606. 

 zachyysa, Gyacilayia. 

 Zanonia viyidis, gen. et sp. n., in 



Cyrenaica, 419. 

 zappci, Itycoysia. 

 zcacolella, Diatyaea. 

 zeac, Achatodes. 

 zealaiulica, Odontyia. 

 zcbrinus, I.ychyosis. 

 Zele, parasite of Porosagyotis oytho- 



gonia in Alberta, 489. 

 Zclus peycgrinus, Z. renardii pre- 

 viously recorded as, 603. 

 Zelus renaydii, predacious on leaf- 

 hoppers and beneficial insects in 

 Hawaii, 468, 602. 

 Zenillia roscanac, parasite of Pyyau- 

 sta nubilalis in Southern France, 

 413. 

 Zetesiuia theobyouiac, on wild cacao 



in Dutch Guiana, 536. 

 zctteystcdti, Habyolcpis. 

 Zcuzeya coffcae (Red Borer), on tea 

 in Burma, 269 ; on tea in Ceylon, 

 123, 319 ; on tea in Eormosa, 77 ; 

 on tea in India, 446 ; food-plants 

 of, in Dutch East Indies, 492, 

 507, 508. 

 Zcuzeya postexcisa, on Lauraceae in 



Dutch East Indies, 507. 

 Zcuzeya pyyina, food-plants of, in 

 Germany, 38 ; on beech in Italy, 

 223 ; rare in forests in Switzer- 

 land, 612. 

 zeuzeyoides, Langia. 

 ziczac, Notodonta. 

 Zinc Arsenate, in bait for Lachno- 



sterna and Styategus, 573. 

 Zinc Arsenite, against Evergestis 

 straminalis, 572 ; scorching effect 

 of, on fruit-trees, 237 ; formula 

 for, against Loxostege siicticalis, 

 153 ; as a potato spray, 34. 

 Zinc Chloride, against termites, 78, 



355. 

 Zinc Salts, effect of, on wing 



development in Aphids, 533. 

 zinckenclla, Etiella. 

 Zinnia, restrictions on importation 

 of, into Canada from U.S.A., 413. 

 Zizera lysimon, on Cajanus indicus 



in ISkuiritius, 559. 

 zizyphi, Parlatoyia. 

 Zizvphus, mealy-bug on, in Egypt, 



317. 

 Zizvphus spina-chyisti, unidentified 



Trj'petid on, in Egypt, 318. 

 Zonabyis (see Mylabris). 

 zonayia, Bisio)i. 



zonatus, Ceroplastes ; Dacus [Chaeto- 

 dacus) . 



