700 



INDEX. 



Eriococms tillandsiae, sp. n., on 

 Tillandsia recmvata in Lower 

 California, 229. 



EriococcHs villosa, sp. n., on Busaria 

 spinosa in Australia, 564. 



Eriodendron anfractuosum (Kapok, 

 Silk-cotton Tree), Batocera rubus 

 on, in Mauritius, 185; destruction 

 of, against Dysdercus in St. 

 Vincent, 413 ; Dysdercus super- 

 stitiosus on, in San Thome, 57 ; 

 Sahlbergella singularis on, in 

 Gold Coast, 81. 



Eriogastcr lanestris, food-plants and 

 parasites of, in Bulgaria, 496, 498. 



Eriopeltis coloradensis, parasitised 

 by Lencopis nigricornis, 39. 



Eriopeltis fesiucae; in Britain, 505 ; 

 parasitised by Lencopis nigri- 

 cornis, 39. 



Eriopeltis lichtensteini, bionomics of, 

 in Germany, 39 ; parasitised by 

 LeucGpis nigricornis, 39. 



eriophori, Rhopalosiphum. 



Eriophyes, on cotton in Bihar, 74. 



Eriophyes avellanae (Hazel Gall- 

 mite, Filbert Bud Mite), a minor 

 forest pest in Britain, 488 ; in 

 Denmark, 194, 364 ; in Italy, 

 223 ; in Oregon, 223 ; notice of 

 biology of, 614. 



Eriophyes carinaius (Purple Mite), 

 on tea in Ceylon, 318, 466. 



Eriophyes fi CHS, sp. n., on wild figs in 

 France, 360. 



Eriophyes gossypii (Cotton Leaf 

 Blister Mite), cotton possibly 

 attacked by, in Bihar, 74 ; 

 possibly on cotton in Gold Coast, 

 82 ; in Porto Rico, 399, 572 ; on 

 cotton in West Indies, 322, 413, 

 428, 429, 560, 586; quarantine 

 against spread of, into U.S.A., 

 313 ; measures against, 428, 429, 

 572. 

 Eriophyes niacrotuberculatus, on 



Valeriana in Germany, 277. 

 Eriophyes oleivorus, intercepted on 



oranges in California, 514. 

 Eriophyes pyri (Pear-leaf Blister 

 Mite), on apple and pear in 

 Canada, 131, 582 ; in Holland, 

 479 ; on pear and vine in Italy, 

 223 ; in U.S.A., 153, 585 ; 

 measures against, 153, 479. 

 Eriophyes ribis (Black Currant Mite), 

 measures against, in Britain, 485, 

 486 ; on currants and goose- 

 berries in Denmark, 194, 364 ; 

 bionomics of, in Holland, 477. 

 Eriophyes theae, on tea in India, 

 446. 



Eriophyes tiliae, notice of biology 

 of, 614. 



Eriophyes trisiriatiis, on walnut in 

 Italy, 223. 



Eriophyes vermiformis, synonym of 

 E. avellanae, 614. 



Eriophyes vitis, on vines in Germanv, 

 4 ; in Italy, 223. 



Eriosoma americanum, Deraeocoris 

 aphidiphagus predacious on, in 

 North America, 438. 



Eriosoma crataegi, Deraeocoris fas- 

 ciolus predacious on, in North 

 America, 438. 



Eriosoma fodiens, on Ribes in 

 Britain, 230 ; the root-form of 

 E. idmi, 230. 



Eriosoma inopinatuni, sp. n., form- 

 ing galls on elm in Italv, 

 174. 



Eriosoma lanigeriim (American 

 Blight, \\'oolly Apple Aphis), 

 utilisation of Aphelinus mali 

 against, in South Africa, 186, 229, 

 282, 331 ; sprays for, in Algeria, 

 173 ; bionomics of, in North 

 America, 230, 438 ; measures 

 against, in Brazil, 143 ; in 

 Britain, 230, 270 ; legislation 

 against, in Britain, 485 ; not 

 very injurious in British Colum- 

 bia in 1920, 582 ; intercepted in 

 British Columbia, 13 ; measures 

 against, in France, 476, 540, 593 ; 

 Chrysopa vulgaris a natural enemy 

 of, in Germany, 540 ; measures 

 against, in Holland, 96, 478 ; 

 measures against, in India, 184 ; 

 in Italy, 223, 344, 471 ; intro- 

 duction and establishment of 

 Aphelinus mali against, in New 

 Zealand, 534 ; measures against, 

 in Switzerland, 401 ; measures 

 against, in U.S.A., 101, 170, 230, 

 239, 353, 407, 570 ; intercepted 

 on apple in U.S.A., 290, 514 ; 

 proposed introduction of Aphe- 

 linus mali into L^ruguay against, 

 518 ; measures against, in Vic- 

 toria, 8 ; bionomics of, 230-232 ; 

 experiments with calcium poly- 

 sulphides against, 409 ; destroyed 

 with carbolineum, 591. 

 Eriosoma lanuginosum, forming 

 galls on Ulmus campestris in 

 Europe, 174 ; in Italy, 344 ; on 

 Ulmus in Macedonia, 95. 

 Eriosoma {Schizoneura) ,passerinii 

 (Poplar Aphis), bionomics of, in 

 Russia, 346. 

 Eriosoma pyri, intercepted in 

 British Columbia, 13. 



