NYMPH ALIN^. 339 



in cell towards extremity is just apparent, being bounded on each side 

 by a little vague yellowish irroration ; discal band as in Felias and 

 Saturnus, but the series of fuscous spots traversing it more strongly 

 marked and the outer part of band more completely separated into 

 spots, — the latter much more rounded ; a hind-marginal series of very 

 small and ill-defined pale-yellowish inter-nervular marks ; cilia marked 

 rather conspicuously with white where these spots adjoin it. Hind- 

 iving : band whitish near costa, its form and direction as in Saturnus ; 

 inner-marginal area greyish-brown ; hind-marginal lunules very dis- 

 tinctly marked, more elongate than in Saturnus, but similarly coloured 

 with white and greenish, the three uppermost having a tinge of ochre- 

 yellowish ; submarginal series of blue spots very well developed, the 

 largest (next anal angle) having a double white centre, and there being 

 one or two additional minute spots superiorly ; cilia white ; tails 

 slender, black, — the one on third median longer in comparison with 

 that on first median nervule than in Saturnus. Under side. — Mark- 

 ings and colouring agreeing very nearly ivith those of Saturnus, hut 

 ground colour of hasal ao^ea dark reddish-hrotvn instead of ferruginous- 

 red, darker than in Pelias, and of outer area more decidedly greenish in 

 tint ; the white-bordered fuscous spots and striae of hasal area so much 

 darker centrally as to he almost uniform. Fore-iving : spots of outer 

 part of discal band of a paler yellow ; hind-marginal spots very thin, 

 white, alternating with thin black ones ; a submarginal, dentated, 

 interrupted, ill-defined, fuscous line. Hind-iving : ferruginous mark- 

 ings outwardly bounding discal band much darker. 



I have no ^ examples of this Charaxes, but, from Cramer's figures and 

 from notes of specimens in other collections, that sex is evidently much less 

 like the nearly allied forms than is the $ , as far as the upper side is con 

 cerned, owing to the contractioji and general diminution of the ochreous-yellow 

 discal hand, xohich is edged tvith ferruginous, and in fore-icing has the inner 

 portion of its upper half reduced to three or four small separate spots. The 

 ground-colour of the upper side is very dark, almost black, with only a 

 narrow greyish suffusion at bases ; the hind-marginal lunules of the hind- 

 wing are blue. 



The differences pointed out clearly serve to distinguish C. Castor from 

 C. Saturnus and C. Felias (both of which have the basal area suffused with 

 ferruginous), and I should have added, its very much larger size, if it were 

 not for the immense ^ of Saturnus above mentioned as figured by Mr. A, 

 G. Butler. 



I was not aware that this very fine Charaxes was found south of the 

 Tropic until 1878, when Mrs. Monteiro sent me two female specimens from 

 Delagoa Bay. I noted in 1881 that a male example from the same locality 

 in Mrs. Monteiro's collection had the tail on the third median nervule much 

 shorter than it is in the female. 



Localities of Charaxes Castor. 



I. South Africa. 



H. Delagoa Bay — Lourengo Marques {Mrs. Monteiro). 



