AFRICAN APHIDIDAE. 315 



extending up to the large subapical one ; the antennae arise from moderately 

 large frontal lobes. Eyes large, black. Proboscis thin, reaching to the second 

 pair of legs. Abdomen green, with three pairs of brown lateral spots before the 

 cornicles and traces of small dark transverse bars. Cornicles dark brown, 

 slightly swollen along the apical half, rather long, reaching just beyond the 

 cauda, imbricated, with one or more lines across the apex. Penis nude, ochreous, 

 claspers dark, imbricated, spinose. Fore femora mostly pale, darkened at the 

 apex, mid and hind femora mostly dark • tibiae pale, dark at the apex, hind 

 tibiae very long ; tarsi dark ; tibiae with many short, fine, pale hairs. Wings 

 with pale brown veins and stigma. Length, 1*5 mm. 



Alate viviparous female, — The third segment of the antennae has a line of 

 12 sensoria on one side, the third segment being longer than the fourth, the first 

 is large and angulated and the frontal tubercles are more prominent than in the 

 male. The cornicles similar in form to those of the male, imbricated, with two 

 transverse striae, the lower one being furcate on one side ; cauda with apparently 

 only two pairs of lateral bristles ; wings normal, with yellowish brown veins and 

 stigma. Length, 1*8 mm. 



Apterous viviparous female. — Green, with small dark lateral spots ; head 

 darker ; legs pale, apex of tibiae and tarsi dark ; proboscis dark at the apex. 

 Eyes black. Antennae longer than the body, the sixth segment and the apex of 

 the fifth dusky ; the third segment longer than the fourth with seven to nine 

 sensoria, the fourth longer than the fifth. Cornicles long, thin, slightly expanded 

 on the apical half, pale, dusky at the apex, projecting well beyond the cauda ; 

 faintly imbricated, the apex with one or two striae ; cauda pale, ensiform, with 

 three pairs of lateral chaetae. Length, 1*3-2 mm. 



British East Africa : Njoro, i. 1912 (T. J. Anderson). 



Food-plant : Lophospermum erubescens. 



Described from a single alate male, many apterous viviparous females and a 

 single damaged skin (parasitised) of the alate viviparous female. The colours are 

 taken from spirit specimens, but were still marked. 



Macrosiphum lycopersicella, sp. nov. 



Apterous viviparous female. — Entirely greenish, with large black eyes, dusky 

 tarsi and dusky apices to the tibiae. Antennae as long as or longer than the body, 

 arising from prominent frontal tubercles, which are imbricated ; first segment 

 large, the second shorter and much narrower, the third the longest, the fourth 

 a little shorter than the third, fifth a little shorter than the fourth, the sixth 

 about as long as four und five together, a sensorium near the apex of the fifth, 

 and a group at the constriction of the sixth, all the segments imbricated ; apex 

 of the fifth and all the sixth brown, a few spine-like short hairs ; two hairs on 

 the frons, and a few on the lateral lobes. Eyes large and black. Cornicles long, 

 projecting much further than the cauda, narrow, slightly swollen on the apical 

 half, green, dusky at the apex, faintly imbricated, the apex with one or two 

 striae. Cauda large, pale green, bluntly pointed, with lines of fine points, and 

 three pairs of lateral hairs. Legs long and thin, especially the tibiae ; apex of 

 tibiae and the tarsi dusky brown, hairy, ungues dark. Rostrum reaching just 



