Papilio cenea and Hypolimnas misippus. 685 
The evident hereditary tendencies displayed in these 
males, together with their marked individual differences, 
are of especial importance in relation to the study of the 
wonderful series of modifications which are encountered 
when we trace the allied forms of this remarkable Papilio 
from the coast of British East Africa, westward into 
Uganda, and north-westward into Abyssinia, In any such 
investigation we must reckon with the fact that individuals 
of the same synepigonic group are now proved to exhibit 
great variation in the degree of continuity of the most 
prominent feature in the bind-wing. He Doe: 
Ill. The Synepigonie Group bred in 1908 from a captured 
Jemale of PAPILIO CENEA (TROPHONIUS form of female). 
I succeeded in capturing one of these rare forms of the 
female in the neighbourhood of Durban on September 18, 
1903. Both wings on the right side were slightly but 
distinctly smaller than those on the left (see Plate XX XI, 
Fig.9). From this butterfly only seven eggs were obtained, 
and only five larvee successfully reared. Itis certain that the 
experiment was not in any way vitiated by the introduction 
of wild eggs, larvee, or pupze. Two of the larvae pupated 
on October 19, one on October 20, and two on October 
23. The butterflies emerged on the following dates :— 
Nov. 2. 1 @ cenea-form (Plate XXXI, Fig. 10). 
py Ou dg Ciigs 24): 
ode hands). 
pr Ore eg oC ALD) 
1 2 cenea-form (Fig. 11). 
Thus both the female offspring of the rare trophonius 
form were examples of the commonest of all Natal 
varieties. 
Comparison of the Individuals of the 1903 Synepigonic 
Group of PAPILIO CENEA. By E. B. Pouron. 
The first of the females to emerge is rather smaller than 
the other (Plate XXXI, Fig. 10). Spot (1) is unusually 
small for an insect of this size (compare Figs. 3, 4, and 11), 
being not only greatly reduced by encroachment of the 
ground-colour but also overspread with scattered dark 
scales. The specimen is a white-spotted variety very 
similar to female II. of the 1902 group. The appearance 
of spot (5) is, however, the same as in female ITI. 
