65 



AFRICAN APHIDIDAE.— Part IV. 



Bv Fred. V. Theobald. 



The following new species of Aphids have been sent from Africa ; four are from 

 a collection forwarded by Mr. Claude Fuller of the Department of Agriculture of the 

 Union of South Africa {Macrosiphum cissi, Phorodon violae, Capitophonis 

 chrysanthemi and Forda natalensis) ; one has been sent by Mr. C. C. Gowde}' from 

 the British East African Protectorate which has to be placed in a new genus {Cer- 

 ciaphis). 



Macrosiphum cissi, sp. nov. (fig. 1). 



A late viviparous female. 



Antennae longer than body, rather dark, pale at base of third segment ; basal 

 segment wider and a httle longer than second ; third longer than fourth, not so 

 long as sixth, with a line of 15-18 sensoria extending nearly to the end of the segment 

 the distal one usually markedly separated from the others ; fourth segment a little 

 longer than fifth, the latter with the usual sub-apical sensorium ; sixth with long 

 flagellum and usual sensoria at apex of basal area ; fourth to sixth markedly 

 imbricated ; with short, simple, scattered hairs. Eyes large and dark. Frontal 

 lobes small, but prominent, median ocellus prominent ; head with slightly spatulate 



/<' i>0 i.^. 



Fig 1. 2Iacrosiphum cissi, sp. n. : A, head of alate 9 ; B, cornicle?; and cautla of 

 apterous $ ; C, cornicles and cauda of alate $ ; D, cauda of alate ? ; E, head 



and antenna of apterous $. 



hairs. Proboscis rather broad, dark at apex, reaching to or just beyond the 

 second coxae, apical segment a little longer and narrower than second. Legs long 

 and thin, dark at apices of femora and tibiae, tarsi dark, most of hind femora dark, 

 short hairs over apex of femora and tibiae. Cornicles black, long and cylindrical, 

 about as long as third antennal segment, apex reticulate, remainder imbricated. 

 Cauda about one-half the length of cornicles, pale, with three pairs of long 

 lateral hairs, a smaller apical pair and a median sub-apical one. Anal jjlate darker 

 and with many hairs. Cauda not quite level with apices of cornicles. Wings 

 normal. Length, 2-2-3 mm. 



