Papilio cenea and Hypolimnas misippus. 679 
larve are invariably found on the lower parts of the 
plant, as near to the ground as possible. They are fairly 
easy to detect in the chocolate and white stages, but in 
the last they are the hardest larvee to find of any with 
which I am acquainted. The method which I have found 
to be the best is to knock the plant with the hand, when 
the disturbed larvee evert their crimson prothoracic scent- 
glands. They are then either seen or their presence is 
revealed by the smell. The pupz are even harder to find 
than the larvee. 
My experience with the rare trophonius form, mimicking 
Limnas chrysippus, is somewhat limited, but I have 
succeeded in breeding four examples from captured wild 
larve. I have observed that its pupz are quite different 
in colour from those of the other forms. With this 
exception, the pupz of all the varieties of cenea are 
simply green, and do not vary in appearance, like those of 
many of the Papilionine. The pupa of the trophonius 
form of female was at once distinguished, in the examples 
which have come under my notice, by a number of brown 
lateral markings. Of course I am not referring to the 
usual changes before emergence, when the pattern of the 
wing can be recognized beneath the thin pupal cuticle, 
and when, in the case of cenea, the male can be easily 
distinguished from the female. 
Il. The Synepigonic Group bred in 1902 from a pair of 
PAPILIO CENEA (CENEA form of female). 
It has been already stated that 27 females and 18 
males were bred from the parents represented on Plate 
XXXI, Figs. 1 and 2. 
A. The Female Offspring. 
Not a single example of the brown trophonius form, 
mimetic of Limnas chrysippus, appeared among the 27 
females, but three were of the hippocoonoides form (two of 
these are represented in Plate XX XI, Figs. 7 and 8) mimick- 
ing Amauris dominicanus. All the rest were the cenea 
form (four of these are represented in Plate XXXI, Figs. 
3-6) mimicking Amawris echeria. Of the cenea forms 
three possessed butf-coloured spots on the fore-wing ; 
while probably the whole of the remaining specimens, 21 
in number, were the variety which is commonest in Natal, 
and possesses white spots on the fore-wing, mimicking 
