AFRICAN APHIDIDAE -PART III. 277 



Alate viviparous female. — Head olivaceous ; eyes red. Antennae with first and 

 second segments olivaceous ; third to sixth dusky. Prothorax greenish ; collar 

 olivaceous. Meso- and meta-notum olivaceous, with dark lobes, but ground-colour 

 paler than head. Abdomen apple-green. Cornicles dusky. Cauda green. Legs 

 with tarsi of first and second pairs ochreous ; tips of tibiae dusky ; third pair same 

 as former, but the femora are shaded. Wings with pale or faintly greenish insertions ; 

 costa faintly smoky ; cubitus greenish, very pale ; stigma faintly smoky ; oblique 

 vein pale dusky. Antennae shorter than the body ; first segment larger than the 

 second ; third longer than fourth ; fourth and fifth about equal ; the third with 

 seven circular sensoria ; the fourth with one apical sensorium, as has also the fifth ; 

 sixth with basal area one- third to one- half the length of the flagellum. Cornicles 

 more or less cylindrical, with faint dotted transverse lines. Cauda as long as the 

 cornicles ; with three pairs of lateral hairs ; spinose. Anal plate spinose, with a 

 few apical long hairs. Length, 1*8-2 mm. 



; :^ a. 



Fig, 4. Aphis ficus, sp. n. : A, head and antenna of alate $ ; 



a, cornicle ; B, head and antenna of apterous $ ; b, 



cornicles ; C, wing of alate viviparous $. 



Nymph. — Head pale olive-green, slightly farinose ; eyes dusky brown. Antennae 

 with first two segments olive-green ; third to fifth pale ; sixth smoky. Prothorax 

 pale olive-green, farinose. Meso- and meta-notum a pale ill-defined yellowish-brown ; 

 base of the wing-buds very pale greyish-green ; tips of wing-buds dusky. Abdomen 

 pale yellowish-brown, suffused with green around the cornicles. Cornicles dusky. 

 Cauda of the same colour as the abdomen. Legs yellowish ; tips of the tibiae and 

 all the tarsi dusky. 



Egypt: Gizeh, Cairo, 6.vi.l4 (F. C. Willcocks). Uganda: Kampala, 2.i. 16 

 (C. C. Gowdeij). 



Food-plant — Sycomore fig (Ficus sycomorus). 



Described from a number of spirit specimens sent me by Mr. Willcocks, with 

 colour notes from the live insects. It occurs in great numbers on the leaves of the 

 sycomore fig tree, especially on the leaves which have been attacked by the Sycomore 

 Fig Tree Psylla. These Aphids five in the empty pits left by the Psyllae. This 

 insect bears some resemblance to Aphis zizyphi, but is apparently distinct, for the 

 fourth antennal segment in the alate female has only one sensorium, not 3 to 4 as in 

 zizyphi, and the cornicles of the alatae do not show the marked spiral ornamentation 

 seen in the Zizyphus feeder. * 



