320 FRED. V. THEOBALD — 



Rhopalosiphum dianthi, Schrank (The Green Peach Aphis). 



Aphis dianthi) Schrank. 



Aphis vulgaris, Kyber. 



Aphis dubia, Curtis. 



Myzus persicae, Passerini. 



Aphis vastator, Smee. 

 Schrank, Fn. Boica, ii, 1. p. 114 (1801) ; Kyber, Germ. Mag. i, 2, p. 9. 

 (1815) ; Curtis, J. Roy. Agric. Soc. iii, p. 54, pi. c, fig. 4 (1842) ; Kaltenbach, 

 Mon. Pflanz. p. 42 (1843) ; Walker, Zoologist, vi, pp. 2218, 2246 (1848), vii, 

 pp. xlvi, lv-lvii (1849), viii, pp. ciii, civ (1850) ; Walker, Ann. Nat. Hist. (2) v, 

 p. 391 (1852) ; Passerini, Aphid. ItaL, p. 20 (1863) ; Smee, Potato Plant, p. 81 ; 

 Buckton, Mon. Brit. Aph. ii, p. 15, pi. xliii figs. 1-4, (1877). 



Transvaal : Pretoria, 1. viii. 1913 (G. Bedford); Cape Colony : along 

 Orange River (Lounsbury). — Europe, India and North America. 



Food-plants : Amygdalus amygdalus, Oxalis rosea, Onopordon acanthium, 

 Potentilla recta, Chaerophyllum roseum, C. aromaticum, Syringa vulgaris, 

 Sisymbrium austriacum, Cochlearia armoracea, Nasturtium officinale, Nerium 

 oleander, Solanum tuberosum, etc. ; Rape in (India). 



This aphis was sent to me with Aphis persicae from Pretoria, and I expect 

 Lounsbury 's reference (Leaflet 33, Dept. Agric. Cape Col. 1908) to a green 

 Peach Aphis found in the district along the Orange River, refers to this 

 species. It is abundant on peaches in Europe, and the apterae are pink as 

 well as green. It curls the leaves like, but not to the same extent as, the 

 dark species. 



Aphis brassicae, Linnaeus (The Cabbage Aphis). 



Aphis jloris rapae, Curtis. 

 Aphis raphani, Schrank. 

 Aphis isatidis, Boyer. 



Linnaeus, Syst. Nat. i, 2, p. 734 (1767) and Fn. Suec. p. 985 (1789); Curtis, 

 Farm Insects, p. 68 (1883); Schrank, Fn. Boica, ii, 1, p. 119 (1801); Boyer, 

 Ann. Soc. Ent. France, x. p. 165 (1841) ; Lounsbury, Cape Agric. Journ. 

 (14th Sept. 1899) ; Fuller, First Rep. Govt. Ent. Natal, p. 95 (1901) ; Dewar, 

 First Rep. Govt. Ent. Orange River Col. p. 24. 



Cape {Lounsbury) ; Transvaal (G. Bedford) ; Natal (Fuller) ; Orange 

 River Colony (Dewar); Nyasaland: Zomba, 17. vi. 13 (Ballard); British 

 East Africa : Nairobi (Dr. Andrews). — Europe and America generally, 

 Australia, Japan and India. 



Food-plants : All Cruciferae. 



Fuller refers to this insect as doing a great deal of injury to turnip crops in 

 Natal. Lounsbury says that this cabbage aphis is familiar to the farmers from 

 one end of Cape Colony to the other, and that it is probably an imported pest. 

 Specimens sent to me some years ago by Dr. Andrews, late Director of 

 Agriculture of the East Africa Protectorate, were undoubtedly this species. 

 French records it from Australia (Handbk. Dest. Ins. Victoria, ii, p. 165, 

 pi. xxxv). 



