72 FRED. V. THEOBALD. 



rnetathoracic ; tibiae and tarsi with short fine hairs, a few on the femora ; femora 

 of first and second pairs nearly as long as tibiae, the third a little shorter. Body 

 with short fine scattered hairs, except at the apex, where they are longer. 

 Length, 2-2*5 mm. 



Immature viviparous female. 



Paler, legs pale brown ; antennae dark on last two segments only. Antennae 

 about one-fifth the length of the body ; basal segment shorter than second and 

 very little broader ; third a little longer than second ; fourth about as long as the 

 first ; fifth a little shorter than third, with a small blunt nail, with normal sensoria 

 at its base ; a few scattered hairs. Proboscis reaching to or beyond the third pair 

 of legs. Legs short, just projecting beyond the body, the first slightly shorter than 

 second, third the longest ; tibiae and tarsi with hairs as in adult. Eyes very small. 

 Body with a few rather short scattered hairs. Length, 1 '5-2*0 mm. 



Food-plant. Roots of a weed and in ants nest. 



Natal : Umzinto, 23. iv. 1911. 



Described from several apterous viviparous females and some immature forms. 

 It somewhat resembles Forda rotunda, Theobald, but can at once be distinguished 

 by the long second antennal segment and the short fourth segment, also by the 

 flat vertex and different posterior structure. The eyes also do not project in the 

 same way, and the body is clothed with scattered fine short hairs. 



Some specimens show a partial constriction on the third antennal segment, 

 but I could find none in which it was complete, so that they are only of five segments. 



Species not previously recorded or from new Jjocalities. 



Macrosiphum dahliafolii, Theobald, Bull. Ent. Res. vii, p. 273, 1918. 

 Uganda : Kampala, 2.xii.l9r7 {Gowdey) ; on thistles (Carduus). 



Macrosiphum sonchi, Linnaeus. Syst. Nat. ii, p. 735. 



Uganda : Kampala, 2.xii.l917 (Goivdey) ; on thistles {Carduus). 



One apterous 9, which agrees with British specimens. The darkening of the 

 antennae around the sensoria of the third antennal segment is very marked. 



