Butterflies of Mauritius and Bourbon. 451 
as of high importance in deciding questions of mimicry, I 
put on record my observations regarding P. phorbanta and 
ELuplea goudoti. 
St. Denys, where I chiefly collected, is a town on the 
outskirts of which the houses are situated in the midst of 
gardens of considerable size, and both species are common 
flying about the roads. I secured all my specimens in the 
Botanic Gardens, which comprise an area of three or four 
acres laid out with avenues of palms, and extensive shrub- 
beries of Alamanda, Hibiscus, and other shrubs growing to 
a height of ten or fifteen feet. These were intersected by 
narrow paths, which were consequently shady, and at the 
same time very hot and steamy from the fountains which 
were pretty numerous, 
In these shady groves the Zuplwa was abundant, with a 
more lazy flight than is usual even with an Huplaa; many 
were busy ovipositing on the Alamanda shrubs. Other 
parts of the gardens were laid out in flower-beds and were 
more open, but Huplwa certainly preferred the shade. 
P. phorbanta was also common in the garden. It was not 
difficult to catch, as it flew about ten feet from the ground 
across the broader drives. I should not call the flight 
particularly rapid for a Papilio, but when frightened it 
made off at a considerable pace. Numerous females were 
flying about in a similar manner to the males. I noticed 
two or three females at different times in the shrubberies 
fluttering close to the ground, and from the manner of 
their flight I think they were contemplating oviposition, 
but they did not do so, though I followed them assiduously 
from one citron tree to another. Under these circum- 
stances they were on Huplea ground, and I can imagine 
an unobservant person passing through the gardens and 
being under the impression that he had seen only one 
kind of brown butterfly. 
Papilio (Orpheides) demodocus, Esp. 
This abundant and conspicuous insect could scarcely 
have escaped Mr. Trimen’s notice, so I conclude that it 
has been introduced into the island since he was there in 
1865. It occurs all over the island in every month in the 
year. The larva is well known. 
It is equally abundant in Bourbon, and was introduced 
into that island some thirty years ago by Dr. Vinson, who 
