Butterflies of Mauritius and Bourbon. 443 
very bad condition, and I have little doubt it was imported. 
Vinson records this from Bourbon, but I have no doubt he 
has misnamed the species, the insect occurring in Bourbon 
being H. misippus. 
Neptis (Rahinda) frobenia, Fabr. 
14. Neptis Frobenia, Fabr. 
Usually common in the more wooded parts of the island, 
but difficult to take in good condition as it soon tatters 
itself from its habit of flying in and out of the bushes. 
It has a floating flight very similar to LZ. sibylla. I have 
never found the larva. Flies, I-VI, common; VII, VIII, 
scarce; IX, uncommon; X—XII, common, 
Neptis (Rahinda) dumetorum, Boisd. 
This differs from the above chiefly by the presence of 
several small dots of white on the fore wings which 
give it a speckled appearance. It is far more common 
than NV. frobenia, being very abundant, sometimes almost 
swarming on the loquot trees. It feeds on Zragia. The 
larva and, pupa have been figured and described by 
Vinson (“ Etudes d’Ent.” Oberth. 1888). It is an extremely 
pretty insect, with a most elegant flight, and is almost 
the first butterfly one notices in the woods. It is only 
found in the moister portion of the island where there 
is plenty of forest. Mabille reports it from Madagascar 
also; but for many years it was considered one of the few 
butterflies peculiar to Bourbon. 
14, Libythea cinyras, Trimen (Plate X XIX, fig. 4). 
Tam unable to add anything to Mr. Trimen’s remarks 
on this species. His specimen was given to him by the 
late Mr. Barclay, who informed him that the insect came 
from the Moka district, and was “ very scarce in Mauritius,” 
which implies that Mr. Barclay knew of other specimens. 
If it were not for this remark I should have been inclined 
to look upon Mr. Trimen’s specimen as a casual importa- 
tion. The whole of the Moka district is now under sugar 
cultivation, and no species of this genus is now known to 
occur in Mauritius; it is also absent from Bourbon. Mr. 
Trimen has very kindly lent me his single example for 
figuring. 
