AFRICAN APHIDIDAE — PART II. 



127 



This cannot be Passerini's Aphis punicae as he describes the apterous female as 

 having the cornicles " mediocria alba apice nigra " and the antennae as " albae." 

 His full description of Aphis punicae is as follows : — " Femina vivipara aptera ovato- 

 oblonga, tumida, atro-viridis, albo-pulverulenta vel nuda. Antennae albae corpore 

 breviores, oculi nigri. Abdomen prope marginem tumidulum impresso-punctatum, 

 apicem versus pallidiusculum. Nectaria mediocria alba apice nigro, caudam albam 

 duplo superantia. Long, f , J '"." 



Aphis parvus, sp. nov. (fig. 20). 



Alate viviparous female. — Dark. Antennae not quite as long as the body, bro^ii ; 

 the two basal segments and the sixth somewhat darker ; basal segment broader, 

 but of the same length as the second ; third segment longer than the fourth, but shorter 

 than the sixth, with 7-10 sensoria along its whole length ; fourth and fifth segments 

 about equal, basal area of the sixth about one-third the length of the flagellum, all 



szliQHCiinrreaiciinpnnyninw—- 





Pig. 20. Aphis parvus, sp. n. ; 

 A, head, antenna and pronotum of alate $ , B. cornicle ; C, cauda 

 and anal plate. D, head and antenna of apterous $ ; E, (a) cornicle, 

 (b) papilla, (c) anal plate. 



the segments striate or imbricate. Eyes large, red and black. Legs pale, with 

 the apices of the femora and tibiae and all the tarsi dark ; moderately long. Cornicles 

 black, rather short and thick, markedly striate at the base, becoming imbricated, 

 but unadorned at the apex ; from about one-half to one-third the length of the 

 third antennal segment. Cauda black, about four-fiiths the length of the cornicles, 

 and projecting far beyond them ; bluntly acuminate, spinose and with three pairs 

 of lateral hairs. Wings large, with pale brown stigma and veins. Proboscis reaching 

 to the second pair of legs. Length, 1 "2-1 "5 mm. 



Apterous viviparous female. — Antennae a httle shorter than the body ; two basal 

 segments dark ; third, fourth and fifth, except apex of latter, pale ; sixth dark ; 

 basal segment broader but no longer than the second ; the third a httle longer than 

 the fourth, but shorter than the sixth ; the fourth and fifth about equal ; sixth with 

 the basal area one-third the length of the flagellum ; all the segments finely or clearly 

 imbricated to striated. Pronotum with a blunt papilla on each side. Proboscis 

 reaching past the second pair of legs. Eyes red. Cornicles black, somewhat expand- 

 ing apically, markedly striate at the base, then imbricated, the apex being unadorned. 

 Cauda black, large, from one-half to two-thirds the length of the cornicles, projecting 



