INDEX. 



657 



Aphis miscanthi, sp. n., on Miscan- 

 thiis in Formosa, 409. 



Aphis mordwilkoi, sp. n., bionomics 

 of, in Germany, 505. 



Aphis nerii, on Solanuni, 415. 



Aphis nymphaeae (see Rhopalo- 

 siphum). 



Aphis papaveris, treated as distinct 

 from A. yumicis {q.v.), 505, 506. 



Aphis persicae (see Myzus). 



Aphis persicaecola, synonym of 

 My zns persicae, A\A. 



Aphis persicophila, synonym of 

 Myziis persicae, 414. 



Aphis philadelphi, sp. n., bionomics 

 of, in Germany, 262, 505, 506. 



Aphis podagrariae, bionomics of, in 

 Germany, 506. 



Aphis poini (Green Apple Aphis), 

 insects predacious on, in British 

 Isles, 185, 320 ; in Canada, 307, 

 321 ; on apple and pear in 

 Denmark, 61 ; in Russia, 117 ; 

 in U.S.A., 135, 212, 244, 494, 609 ; 

 disseminating Bacillus amylovorus, 

 494 ; bionomics of, 135 ; measures 

 against, 212. 



Aphis prmii (see Brachycaitdits heli- 

 chrysi) . 



Aphis pseudobrassicae (Turnip 

 Aphis), in U.S.A., 115, 333. 



Aphis pyri, on pears in Bessarabia, 

 208. 



Aphis rosae, on rose in Denmark, 62. 



Aphis ritbiphila, bionomics and 

 control ot, transmitting raspberry 

 diseases in Canada, 244, 459. 



Aphis runiicis (Black Aphis, Bean 

 Apliis), on sorrel in Algeria, 34 ; 

 bionomics of, in British Isles, 11, 

 177,185,320,414,474 ; inCzecho- 

 Slovakia, 467, 486 ; in Denmark, 

 61, 463 ; on beet and potato in 

 France, 266; bionomics of, in 

 Germany, 14, 505, 506 ; relation 

 of, to potato leaf-curl in Holland, 

 237 ; in forests in Ontario, 420 ; 

 in U.S.A., 70, 115, 206, 287; 

 measures against, 11, 14, 34, 70, 

 115 ; natural enemies of, 61, 185, 

 206, 320 ; species resembhng, 

 considered distinct from, 262, 

 505. 



Aphis sacchari (Sugar-cane Aphis), 

 relation of, to mosaic disease in 

 Hawaii, 347 ; in Philippines, 519. 



Aphis saliceti, Syrphiis caroUae pre- 

 dacious on, in British Isles, 185. 



Aphis sambucaria, fungus infesting, 

 in Scotland, 590. 



Aphis sambuci, Coccinellids pre- 

 dacious on, in British Isles, 320. 



Aphis setariae (Black Sugar-cane 



Aphis), a possible carrier of sugar- 

 cane mosaic in Cuba, 603 ; a 



minor pest in Porto Rico, 97. 

 Aphis shirakii, sp. n., on Melastoma 



candiduni in Formosa, 409. 

 Aphis silybi, on Solanurn, 415. 

 Aphis smilacifoliae, sp. n., on Smilax 



chinensis in Formosa, 409. 

 Aphis solanella, on Solanitni, 415. 

 Aphis solanina, on potatoes in 



British Isles, 414. 

 Aphis sorbi (Rosy Apple Aphis), 



Coccinellids predacious on, in 



British Isles, 320 ; on apple and 



pear in Denmark, 61 ; in orchards 



in U.S.A., 135, 210, 212, 609 ; 



bionomics of, 135 ; measures 



against, 210, 212. 

 Aphis sorghella, considered identical 



with A. sorghi, 27. 

 Aphis sorghi, natural enemies of, in 



Sudan, 27, 238. 

 Aphis tavaresi, on Citrus in British 



East Africa, 23. 

 Aphis tuberoscellae, synonym of 



Myzus persicae, 414. 

 Aphis urticaria, in Britislr Isles, 320, 



590 ; Coccinellids predacious on, 



320. 

 Aphis vastator, synonym of Myzus 



persicae, 414. 

 Aphis viburni, bionomics of, in 



Germany, 505 ; considered a 



distinct species, 262. 

 Aphis viburnicola, migrations of, in 



Germany, 262 ; in forests in 



Ontario, 420. 

 Apliis vulgaris, synonym of Myzus 



persicae, 414. 

 Aphis, Black Bean (see Aphis 



rumicis) . 

 Aphis, Black Cherry (see Myzus 



ccrasi). 

 Aphis, Black Citrus (see Toxopiera 



aurantii). 

 Aphis, Black Peach (see Anuraphis 



persicae-niger) . 

 Aphis, Black Sugar-cane (see Aphis 



setariae) . 

 Apliis, Brown Grape (see Macrosi- 



phum illinoisensis). 

 Aphis, Cabbage (see Brevicoryne 



brassicae) . 

 Aphis, Chrysanthemum (see Macro- 



siphum sanborni). 

 Aphis, Clover {see Anuraphis bakeri). 

 Aphis, Corn Leaf (see Aphis maidis). 

 Apliis, Corn Root (see Aphis maidi- 



radicis) . 

 Aphis, Cotton (see Aphis gossypii). 

 Aphis, Currant (see Myzus ribis). 



