522 Mr, R,. Trinien's Descriptions of 



spot in this wing. The species, as a rule, attains a larger size 

 than A. lone, no specimen of the latter that I have seen expanding 

 more than 2| inches. 



I am enabled to speak with confidence concerning this species, 

 no less than sixty-seven examples having been brought from the 

 interior by Mr. John A. Bell on his return from a recent trip to 

 Lake Ngami via Walwich Bay. Mr. Bell informs that the spe- 

 cies was most abundant on the Botletle, one of the chief streams 

 of the river system of the Great Lake. Specimens have been 

 taken much nearer the coast by Mr. Hutchinson and (I believe) 

 by Mr. Andersson. Only single specimens of each of the varieties 

 above characterised were in Mr. Bell's collection. 



2. Anthocharis Phcsnon. 



"Exp. 1 in. 6 lin. 



$ . Pure white, with very large, dull purplish-crimson, faintly 

 violet-glossed apical patch. Fore-rving : apical patch covering 

 nearly half the surface, its inner edging of black well-defined, 

 reaching from about naiddle of costa to anal angle, outer edging 

 very narrow, rather deeply radiating on the nervules, which divide 

 the crimson into eight bars ; intersecting apical patch, but much 

 nearer its inner than its outer edge, a blackish streak from costa, 

 inwardly angulated on 1st median nervule, and joining interior 

 black edging on 2nd median nervule, forming with the latter (in 

 one specimen) a suffused, ill-defined spot ; base and costa nar- 

 rowly irrorated with greyish ; a blackish disco-cellular dot. Hind- 

 wing : greyish basal irroration extending a little along sub-median 

 and median nervures ; a thin blackish line bounding hind-margin 

 as far as 2nd sub-costal nervule; extremities of nervules clouded 

 blackish, more faintly so towards anal angle, the 3rd median 

 nervule and sub-median nervure being unmarked. Underside. — 

 Fore-wing : costa tinged with lemon-yellow; space between costal 

 and median nervures orange-yellow (paler towards base), abruptly 

 ending in a line with insertion of 1st sub-costal and 3rd median 

 nervules ; disco-cellular dot more distinct ; apical patch faintly 

 yellowish, the nervules crossing it yellow-ochreous, its inner 

 edging ochrey-reddish (suffused on median nervules), the inter- 

 secting streak brownish-fuscous ; parallel to and near hind- 

 margin a yellow-ochreous line. Hind-wing: creamy; costa edged 

 with orange-yellow to beyond middle ; nervules from middle and 

 hind-marginal line yellow-ochreous; from costa, before and just 

 beyond middle respectively, two transverse streaks extend to near 

 anal angle, the inner grey and nearly straight, the outer irregular, 



