AFRICAN APH1DIDAE. 329 



lng at the base, markedly and closely imbricated. Legs black, base of femora 

 pale. Wings with yellowish brown veins and stigma, and yellow insertions. 

 Length 2 to 2'3 mm. 



Nymph. — With rather thicker and shorter black legs, dusky wing-cases and 

 short dark bluntly triangular Cauda, with three pairs of lateral bristles ; anal 

 plate dusky, with many long chaetae, the inner group crossing one another. 

 Four dark spots show on the pronotum, and the middle of the mesonotum is dusky 

 in front. Length 1'8 to 2*3 mm. 



Transvaal : Pretoria, 1. viii. 13 (G. Bedford). 



Food-plant : Willow (Salix sp.). 



Described from a number of: spirit specimens, which unfortunately were 

 nearly all damaged, except the nymphac ; there were only four alate females and 

 none of these had complete antennae. A very marked yellow species, with 

 prominent black legs, cornicles, cauda and antennae. 



Aphis coffeae, Nietner. 



Morstatt, Der Pfianzer, Dar-es-salaam, ix, p. 298 (1913). 

 German East Africa {Morstatt). 

 Food-plant : Coffee. 



Aphis rumicis, Linnaeus (Black Fly or Collier). 



Aphis papaveris, Fabricius. 

 Aphis thlaspeos, Schrank. 

 Aphis fabae, Scopoli. 



Aphis atriplicis, Fabricius {nee Linnaeus). 

 Aphis aparines 9 Schrank. 

 Aphis armata 9 Hausmann. 

 Aphis dahliae, Mosley. 

 Aphis cvonymi, Fabricius. 

 Aphis ulicis, Fabricius. 

 Linnaeus, Syst. Nat. i, 2, pp. 724, 735 (1767); Theobald, J. Bd. Agric, 

 London, xix, pp. 467-476, pi. ii, fig. 1 (1912) ; Morstatt, Der Pfianzer, Dar-es- 

 salaam, ix, p. 296 (1913). 



German East Africa (Morstatt). — Europe generally, N. America and 

 India. 



Morstatt records it from cowpeas in Africa. For a full list of food-plants, 

 life-cycle and references, see my paper in the Journal of the Board of Agriculture 

 Two new food-plants must be added to the list I have previously given, namely, 

 Vigna cat/any and Benincasa cerifcra, in India (Lefroy). 



Aphis (Myzus) nerii, Boyer. 



Aphis asclcpiadis, Passerini. 

 Boyer, Ann. Soc. Ent. France, x, pp. 179-180(1841) ; Passerini, Aphid. Ital., 

 pp. 22, 25 (1863) ; Ferrari, Aphid. Liguriae, p. 62 (1872). 

 Egypt : Cairo (F. C. Willcocks). 



