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SOUTH-AFRICAN BUTTERFLIES. 
This is the southern form of A. Serena, Fab., and perhaps not 
sufficiently distinct to rank as a separate species, either from it or from 
A. Manjaca, Boisd., the Madagascar representative. From the West- i 
African insect, A. Buxtoni is in both sexes to be distinguished by the 
shortness and incompleteness of the oblique subapical black bar of the 
fore-wing, which in Serena is almost invariably broader and united to 
the hind-marginal black border. In the ^ this distinction is very 
marked, particularly in the " Form l " (upon which Mr. Butler chiefly 
characterised Buxtoni), in which the subapical white — a strictly limited 
and enclosed bar in Serena — is diffusedly extended in the outer discal 
region. In Natal this peculiar form of ^ is more prevalent than that 
which nearly resembles the In the $ Serena the hind-marginal 
border is broader than in the J Buxtoni, and the enclosed spots larger, 
and almost invariably very well defined ; while in both sexes the inner 
festooned line on the under side of hind- wing, described above as 
peculiar to " Form & " of $ Bnxtoni, appears to be always present. 
Judging from Boisduval's figures (op. cit), A. Manjaxa would 
appear to be even nearer to Buxtoni than Serena is, the subapical bar \ 
in the though complete, being very slender, and in the $ quite as I 
imperfect as in the " Form h " above described. The $ figured by 
Boisduval seems, indeed, very close to the latter, the fore-wing being 
even more transparent and almost colourless. Both sexes are repre- 
sented as smaller than either the West-African or South- African form. 
Larva. — Dull green. A whitish stripe along each side of the 
back, interrupted on each segmental incision by a transverse line 
darker than the ground-colour. Spines of the dorsal and upper lateral 
rows black ; of the lower lateral row on each side yellow. The two 
dorsal black spines on segment next head longer and more distinctly 
branched than the rest, and projecting forward beyond the head, which 
is ochreous. j 
(Described from a drawing by Mr. H. 0. Harford, giving a dorsal ! 
view.) 
The food-plant is stated to be a species of Herniannia. j 
Pupa. — Pale-yellowish. Outline of wings and nervures very finely ' 
black ; some thin and ill- defined dorso-tlioracic black marks ; on each 
side of abdomen a subdorsal and a lateral row of yellow spots in black 
rings, the latter being thinner in the lateral than in the subdorsal row. 
Attached to a slender stalk. 
(Described from a figure by Mr. H. 0. Harford, giving a lateral 
view.) 
A. Buxtoni is a common species on the coasts of Natal, where I observed it 
from January to April 1867. Going inland it became scarcer; but I met with 
occasional individuals as far as Grey town. It is a very weak flyer, even for an 
Acroea, and is most easily captured. The outskirts of woods are its favourite 
haunt. I once met with two ordinary males and a dark specimen of the ? 
" Form h " flitting about together in the same spot. Colonel Bowker sent me 
