Chap. XIV. 
OCELLI. 
133 
parchia Janira) exhibiting numerous gradations from 
a simple minute black spot to an elegantly-shaded 
ocellus. In a S. African butterfly {GyJlo Leda, Linn.) 
belonging to the same family, the ocelli are even still 
more variable. In some specimens (A, fig. 52) large 
spaces on the upper surface of the wings are coloured 
black, and include irregular white marks ; and from 
this state a complete gradation can be traced into a, 
Fig. 52. Cyllo leda, Linn., from a drawing by Mr. Trimen, shewing the extreme range 
of variation in the ocelli. 
tolerably perfect (A^) ocellus, and this results from the 
contraction of the irregular blotches of colour. In 
another series of specimens a gradation can be followed 
from excessively minute white dots, surrounded by a 
scarcely visible black line (B), into perfectly symme- 
trical and large ocelli (B^).^^ In cases like these, the 
This woodcut has been engraved from a beautiful drawing, most 
Idndly made for me by Mr. Trimen ; see also his description of the 
A. Specimen, from Mauritius, upper 
surface of fore-wing. 
Ai. Specimen, from Natal, ditto. 
B. Specimen, from Java, upper surface 
of hind- wing. 
B^. Specimen, from Mauritius, ditto. 
