AFRICAN APHIDIDAE— PART II. 143 



Apterous viviparous female. — Colour variable, majority pale green, rarely olivaceous. 

 Head pale yellowish-green ; eyes reddish. Antennae pale, slightly tinged with 

 ochreoiis ; sixth segment pale smoky. Thorax pale yellowish-green. Abdomen 

 pale green, a few pale hairs on the sides and some rather longer apical ones. Legs 

 faintly ochreous, tarsi smoky. Venter green, sUghtly farinose. Head rather small, 

 slightly curved in front and hairy. Eyes large ; stemmata small. Antennae not 

 quite as long as the head and thorax ; the first segment as long as the second, but 

 a little wider ; the third the longest, "with 2-4 sensoria at the apex (in one specimen 

 4 on one antenna and 1 on the other) ; fourth about one-fourth the length of the third, 

 with two sensoria on the apical half ; fifth as long as the fourth with one large sub- 

 apical sensorium ; sixth longer than the fifth, with a small blunt nail with a single 

 large sensorium at the base ; all the segments with rather long hairs. Proboscis 

 reaching to between the second and third pair of legs ; apical segment dark, the 

 penultimate wider and much shorter than the apical one. Thoracic segments all of 

 much the same width. Abdomen with the sides parallel up to the cornicles where it 

 bends in and terminates in a broadly based l/riangle ; slightly hairy. Cornicles 

 bluntly cone-shaped, with numerous hairs, dark. Cauda semicircular, dark and 



Fig. 32. Anoecia wiUcoclcsi^ sp. n. ; A, antenna 



of apterous $ ; Ai, antenna of alate $ ; 



A2, head of alate $. 



A. cornif L. ; B, antennae of apterous ? ; 

 Bi, antenna of alate o- B2, head of alate 9. 



A. panicola, Thos. Ci, antenna ; C2, head, 



hairy ; sides of the last segment with a pair of prominent hairs. Legs dark brown, 

 about equally separated, rather short and thick ; tibiae and tarsi hairy. Femora 

 of fore and mid legs rather larger than usual. Length, 2- 5-3 mm. 



Nymph. — Head obscure pale yellowish ; eyes dark ; ocelh red. Antennae pale, 



faintly tinged with ochreous, two terminal segments pale smoky. Prothorax pale 



orange, also mesothorax. Base of wing-buds pale ochreous, tips dusky. Abdomen 



_greenish yellow. Legs faintly ochreous ; apical part of tibia faintly smoky ; tarsi 



I dark smoky. Underside of head and thorax pale orange, venter greenish yellow. 



Larva. — Pale yellowish-green ; eyes reddish. Antennae with 5-6 segments, base 

 pale, apex smoky. Legs pale, tarsi dusky. 



Egypt : Gizeh, 29.iii.09 {F. C. Willcocks). 



Food-plant. Wheat roots. 



Described from several alate females, many apterous females and a few nymphae 

 in which the wing- buds, antennae and legs seem paler, except the tarsi and apices 

 of the antennae. 



