AFRICAN APHIDIDAE PART III. 



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7. Aphis buddleiae, sp. nov. (fig. 7). 



Alate viviparous female. — Head dusky, tinged with olivaceous ; eyes black. 

 Antennae shorter than body ; first and second segments pale, olivaceous ; third 

 dusky, pale at the base ; fourth to sixth dusky ; first segment a little larger than 

 second ; third a little longer than fourth and shorter than sixth, with 14-16 round 

 sensoria of varied sizes ; fourth as long as the fifth, with 3-5 round sensoria ; sixth 

 as long as 4 + 5, its basal area slightly less than half the length of the nagellum ; 

 third to sixth imbricated ; the whole of the antennae are rather thick. Proboscis 

 long, reaching well past third coxae ; acuminate ; the apical segment narrow, about 

 twice as long as the penultimate. Pronotum lemon-yellow, dusky in front. Thoracic 

 lobes brownish black to deep blackish-brown. Abdomen lemon-yellow ; skin 

 reticulate. Cornicles black, about as long as third antennal segment ; cylindrical, 

 but slightly swollen on the inner side near apex or base, or irregularly imbricated. 

 Cauda lemon-yellow, with dusky apex to faintly smoky ; rather short and triangular ; 



Fig. 7. Aphis buddleiae, sp. n. : A, head and antenna of apterous $ ; 



B, cornicles ; C, head and antenna of alate $ ; D, apex of proboscis ; 



E, anterior wing ; F, cornicles ; G, cauda 



about one-third the length of cornicles, and projecting beyond them ; spinose, with 

 three pairs of pale lateral hairs and one dorsal subapical one. Anal plate smoky ; 

 spinose, with a few long pale hairs. In front of the cornicles on each side of the 

 abdomen are three pale dusky spots and one at the base of each cornicle, and two 

 pale dusky bands across the apical segments of the abdomen. Legs long and rather 

 thin ; first pair with femora and tibiae pale ochreous ; apex of tibiae and the tarsi 

 dusky ; the second have also the apex of the femora dusky, and the third pair the 

 same. Wings with yellowish insertions ; cubital vein yellow ; costa yellowish ; 

 stigma pale and ill-defined, yellowish to ochreous smoky ; lower margin somewhat 

 greenish. Length, 1*3 to 1*5 mm. 



