( xxix ) 



sixth is wanting ; and the seventh (on inner margin) is very 

 much smaller and not so sharply defined. Hind wing : median 

 band considerably broader — especially in its median part — 

 its inner edge much nearer to base, and curved instead of 

 almost straight, and its first (subcostal) spot wanting. Cilia 

 in both wings white between nervules. Underside. — Warm 

 ferruginous-brown, of a redder tint than in incongrua, with 

 the fuscous neuration and linear iuternervular streaks more 

 pronounced ; white markings as on upperside, but discocellular 

 and subcostal spots larger in the fore wing, where the inner 

 marginal subcellular area is shining gvey, much more glossy 

 than in incongrtm. 



" $ . Like S , but with all white markings larger, and the 

 first spot of discal series — subcostal, small, and sublinear in 

 fore wing, but of moderate size and conspicuous in hind wing 

 — present as in incongrua. Underside. — Ground-colour paler 

 and brighter than in S , with an ochreous-yellow tinge ; 

 white markings as on upperside. 



" The differences pointed out, and especially the large oblique 

 medio-discal single marking formed in the fore wing by the 

 enlargement and complete union of the two largest spots of 

 the discal series, and the much broader and somewhat un- 

 evenly curved (instead of straight) band in the hind wing, 

 give this form a thoroughly distinct aspect from that of J\L 

 incongrua, and to a considerable extent approximate it in 

 pattern, as far as the upperside is concerned, to N. marpessa, 

 Hopff. [= saclava, Boisd.], a congener of very wide Ethiopian 

 range ; but the similarity does not extend to the hind- 

 marginal areas, which in swynnertoni (as in i7icongrua) are 

 of the simple unvaried black of the ground-colour, but in onar- 

 pessa are marked with a series of darker spots succeeded by 

 two series of indistinct whitish lunules. As regards the 

 underside, swynnertoni and incongrua differ widely both from 

 marpessa and from the rather numerous African group repre- 

 sented by N. agatha, Cram., in the complete want (except in 

 the case of the minute discocellular and subcostal spots of the 

 fore wing) of the numerous and elaborate minor paler and 

 darker markings, and also in the rufous — or ferruginous — 

 ochreous ground-colour ; in both which respects, but especially 



