1909.] FAUNA OF COCOS-KEELING ATOLL. 147 
(10) Remicia FRuGALIS Fabr. 
Most abundant in May, and a few stragglers again in Sep- 
tember. It flies by day, and is not uncommon in the grassy 
spaces, where the undergrowth is kept cleared. 
(11) Prusia cHatycres Esp. 
The development of a garden on Pulu tikus appeared to be the 
cause of the abundance of this species; but since the garden 
plants were introduced as seed, there appears but little chance of 
their having been the agent for its introduction. It swarmed in 
June 1906, and the green larva was abundant on peas, tomatoes, 
and almost every plant that was grown in the garden, The pupal 
stage lasts only a week. 
(12) Hyprna stricara Fabr, 
One example only taken, 
(13) CarEprRia sp. 
This is a handsome insect, boldly marked with black and white. 
It appears on the wing in September. The larva feeds on the 
leaves of Pemphis acidula, in company with Ophiusa melicerta, 
to which larvee it bears a considerable rough resemblance. It is 
mottled grey on the back, and the belly is velvety black; at the 
anal extremity is an upwardly directed tubercle with a bifid tip. 
A collar of magenta colour surrounds the larva behind the head, 
but in all ordinary attitudes this is hidden by a skin-fold. It 
pupates among the little leaves of its food-plant ; the pupa has no 
bloom, and the pupal stage lasts for twenty days. I never saw an 
example of the perfect insect, save those that | reared from larve ; 
and, so far as I could find out, no one on the island was acquainted 
with the moth. The larve were by no means uncommon on a 
few bushes in Pulu tikus, but I did not meet with them on any 
other islands. 
SPHINGIDE. 
(14) Macroeiossa PAssALusS Dru. 
By no means common, and more frequently seen as a larva than 
as an imago. On the wing in September. Larva green with 
fine bright pink side-stripes; feeds on Morinda citrifolia Linn., 
native name ‘ Mungkoodoo.” The pupa is a mottled yellowish- 
brown. 
(15) CePpHonopEs HyLAs Linn. 
Common on Pulu tikus, but not often seen on the southern 
islands. Frequents the flowers of the Papaia by day, and is 
evidently the source of the error that bees are common in the 
islets. When hovering in front of the food-plant, in the act of 
laying its eggs on the leaves, the long hairs of the extremity of 
the body stand out like a fan. Most abundant in June and 
September, but stragglers may be taken in almost any month. 
Os 
