280 



FRED. V. THEOBALD. 



basal area of sixth about one-third the length of the flagellum ; third to sixth 

 imbricated. Cornicles rather long, thick and dark ; cylindrical, but expanding 

 basally ; imbricated ; projecting beyond the tip of the cauda and nearly twice its 

 length and longer than the third antennal segment. Cauda spinose, with three pairs 

 of lateral hairs, placed on its apical half. Anal plate darker than the cauda ; spinose 

 and with a few long apical hairs. A papilla on each side of pronotum and one on 

 each side of body between the meso- and meta-thoracic legs. Proboscis narrow. 



Fig. 6. Aphis bauhiniae, sp. n. : A, head and antenna of alate $ ; 

 a, variations of sensoria on third antennal segment ; B, cornicle ; C, cauda ; 

 D, anterior wing ; E, head and antenna of apterous $ ; F, variations of 



the cornicle ; G, cauda. 



reaching past the second pair of legs, often nearly to the third ; acuminate ; apical 

 segment narrower and longer than the penultimate. Legs normal ; tibiae with a 

 few scattered hairs. Length, 1-1*4 mm. 



Egypt: Gizeh, 26. v. 10 (F. C. Willcocks). 



Food-plant. — Bauhinia. 



Described from a number of apterous and alate females taken by Mr. Willcocks 

 on the leaves of a Bauhinia, preserved in spirit, but still showing faint colours. The 

 structure of the antennae in the alate female will at once separate it from other 

 Egyptian species. 



There appears to be some variation in the shape of the head in front, some mounts 

 showing it to be quite flat, whilst in others it is slightly projecting in the middle 

 and at the sides ; and the number of antennal sensoria vary, four being the fewest 

 and seven the most I have seen on the third segment. 



