606 



INDEX. 



548, 582 ; classification and new 

 species of, 18, 49, 104, 129, 164, 

 180, 203, 236, 288, 334, 335, 387, 

 432, 487, 494, 561, 564 ; relation 

 of ants to, 209, 273-276, 387, 400 ; 

 intercepted in California, 12, 146, 

 423, 474, 580 ; intercepted on 

 roses in Hawaii, 535 ; on indigo 

 in India, 124 ; in orchards, etc., 

 in Russia, 150, 151, 303 ; presence 

 of eggs of, in Texas, 220 ; on 

 globe artichoke in U.S.A., 507 ; 

 transmitting mosaic disease of 

 tobacco, 577 ; carriage of Bacillus 

 amylovorus by, in U.S.A., 206. 



Aphiocliaeia alhidihalteris, bionomics 

 and control of, in mushrooms in 

 U.S.A., 423. 



Aphiochaeta lyarasiiica, sp. n., para- 

 site of SeJioenobius ineertellus in 

 the Far East, 575. 



Aphiochaeta rufipes, Muscina assi- 

 milis predaceous on, 428. 



Aphis, sub -genera of, 334. 



Aphis abietina (Sitka Spruce Green 

 Aphis), in Br. Columbia, 332. 



Aphis africana, on broom-corn in 

 Br. E. Africa, 112. 



Aphis amygdali, control of, in 

 Colombia, 80 ; control of, on 

 fruit-trees in Argentina, 39. 



Aphis anclreinii, sp. n., on Coreopsis 

 in Eritrea, 335. 



Aphis auranUi, food-plants and 

 control of, in Colombia, 80. 



Aphis avenae (fitchi) (Barley Aphis, 

 EuropeanGraiu Aphis, Oat Aphis), 

 on medlar in Germany, 94 ; bio- 

 nomics and control of, in 

 N. America, 69, 228, 229, 328, 

 332, 347, 448, 550 ; on oats in 

 Ireland, 487 ; on Graminaceae in 

 Italy, 335. 



Aphis bakeri (Short-beaked Clover 

 Aphis), a minor apple pest in 

 Canada, 550 ; bionomics of, in 

 U.S.A., 228, 268, 493. 



Aphis beccarii. &]). n., on Vicia faba 

 in Eritrea, 335. 



Aphis brassicae (Cabbage Aphis), 

 control of, in Canada, 117, 121, 

 333 ; food-plants and control of, 

 in Colombia, 80 ; on cabbage in 

 Italy, 180, 533; in Russia. 562, 

 563 ; bionomics of, on cruciferous 

 crops in U.S.A., 13, 306, 387, 404, 

 412, 482, 528; parasites of, 404, 

 412 ; effect of nicotine vapour on, 

 22 ; experiments with quassia 

 and, 541. 



Aphis brevis (Long-beaked Clover 

 Aphis), a minor apple pest in 

 Canada, 550. 



Aphis cannabis (see Phorodon). 



Aphis capsellae (see A. cardui). 



Aphis cardui. bionomics of, in 

 Russia, 562. 



Aphis cerasi, in Russia, 91 ; on 

 Prunus americana in Germany, 94. 



Aphis citricola, sp. n., on citrus, 335. 



Aphis cookii, on citrus, 335. 



Aphis crataegi,^9 ; Aphid resembling, 

 on apple and medlar in the 

 Crimea, 157 ; on Crataego- 

 Mesjyilus in Germany, 94 ; con- 

 sidered distinct from A. pyri, 

 Boy., 562. 



Aphis cydoniae, control of, in 

 Colombia, 80. 



Aphis davisi, n. n., proposed for 

 species recorded by Davis as 

 Aphis popidifoliae. Fitch, 494. 



Aphis erysimi, food-plants of, in 

 Russia, 562. 



Aphis euonymi (see A. rumicis). 



Aphis fitchi (see A. avenae). 



Aphis gossypii (Cotton Aphis, Melon 

 Aphis), on cotton in Brazil, 537 ; 

 in Canada, 548, 552 ; species 

 allied to, on apple in Canada, 550 ; 

 control of, in Philippines, 514 ; on 

 cotton in Turkestan, 563 ; bio- 

 nomics and control of, in U.S.A., 

 229, 307, 321, 381, 386, 406, 482, 

 529. 



Aphis graminum (see Toxoptera). 



Aphis grossulariae, on currants and 

 gooseberries in Russia, 562. 



Aphis helianthi, sp. n., in Eritrea, 

 335. 



Ap)his hordei, on Graminaceae in 

 Italy, 335. 



Aphis houghtonensis, on gooseberries 

 in New Jersey, 320. 



Aphis infuscata (see Bhopalosiphum 

 nymphaeae). 



Aphis insititiae (see A. cardui). 



Aphis isahellina, sp. n.. on clover in 

 Eritrea, 335. 



Aphis jacobaeae (see A. cardui). 



Aphis juglandinis, on walnuts in 

 France, 351. 



Aphis kochi {pyri, Koch) (Rosy 

 Apple Aphis), 50 ; lime-spraying 

 against, on apples in Britain, 

 173 ; on pears in Russia, 303. 



Aphis laburni, on Bobinia pseuda- 

 cacia in Russia, 562. 



Aphis laetucae, food-plants and con- 

 trol of, in Colombia, 80. 



Aphis maidiradicis (Corn Root 

 Aphis), control of, on maize in 

 U.S.A., 60, 142, 209, 387, 462; 

 relation of, to ants, 209, 387 ; on 

 Graminaceae in Italy, 335. 



Aphis maidis, on maize, 159 ; on 

 Graminaceae in Italy, 335. 



Aphis malifoliae ( Rosy Apple Aphis), 

 bionomics and synonymy of, in 

 N. America, 13, 49, 267, 346, 550. 



