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 
SaturnuSj 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- 
wing : band whitish near costa, its form and direction as in Sat'iirnus ; 
inner-marginal area greyish-brown ; hind-marginal lunules very dis- 
tinctly marked, more elongate than in Sahtrnus^ 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 with those of SatimiuSj hut 
ground colour of hasal area dark reddish-hroivn instead of ferruginous- 
red^ darker than in Pelias, and of outer area more decidedly greenish in 
tint ; the white-hordered fuscous spots and strice of hasal area so micch 
darker centrally as to he almost loniform. Fore-ioing : 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 Gliaraxes, 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 contraction and general diminution of the ochreous-yellow 
discal hand, ivliich is edged with ferruginous, and in fove-iving 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). 
