326 FRED. V. THEOBALD — 



of the cornicles, which have a dark spot at their base ; one large and one small 

 lateral blunt tubercle on each side before the cornicles, and a large one between 

 them and the cauda. Cornicles short thick, black, strongly imbricated, slightly 

 expanded basally ; anal plate black ; cauda prominent, black apically, with many 

 pale hairs curved apically. Legs greenish, with dark apices to the femora and 

 tibiae, and dark tarsi. Wings with yellowish brown insertions, brown stigma and 

 veins. Venter of head brown ; of thorax dark brown ; of abdomen green, except 

 for a brown anal plate and traces of basal narrow dark bands. Length 1*5 mm., 

 wing expanse 7 mm. 



Apterous viviparous female. — Head and thorax black ; antennae shorter than 

 the body, the two basal segments black, also the sixth, remainder of antennae 

 greenish, in some specimens the tip of the fifth being dusky ; the third segment 

 is longer than the fourth, the fourth a little longer than the fifth. Pronotum 

 with a prominent blunt spine on each side. Abdomen brownish green, with small 



Fig. 8. — Aphis solanella ) Theo. ; abdomen of alate $ . 



black lateral spots in depressions on each side, one large anterior blunt process 

 on each side, a smaller one behind and a large one between the cornicles and cauda. 

 Cornicles black, expanded basally, imbricated. Cauda black, spiny, with numer- 

 ous pale hairs curved apically ; anal plate dark. Legs greenish, apices of tibiae 

 and the tarsi dusky to black. Venter deep brownish green ; coxae and anal 

 plate black. Length 1*7 to 2 mm. 



British East Africa: Njoro, i. 1913 (T. J. Anderson). 



Food-plant : Solanum sp. 



This species somewhat resembles Koch's Aphis rhei from rhubarb, but is 

 certainly distinct. One alate female shows four sensoria on segment four and 

 another three, the majority none. So far as 1 can see from the material sent, 

 the lateral abdominal tubercles are marked. The colours given are taken from 

 alcohol specimens. The marked antennal ornamentation of the alate female will 

 at once separate it from allied species. 



Aphis persicae, Boyer (The Black Peach Aphis). 



Aphis amygdali) Buckton. 



Boyer, Ann. Soc. Ent. France, x, p. 175 (1841) ; Buckton, Mon. Brit. Aph. ii, 

 p. 104, pi. lxxiii, figs. 1-5 (1877) ; Lounsbury, Leaflet no. 28, Dept. Agric. Cape 

 Col. (1906). 



Cape Colony : midland and northern districts (L,ounsbury) ; Natal (Fuller) ; 

 Transvaal : Pretoria, 1. viii. 13 (G. Bedford). — Europe, N. America and 

 Australia. 



