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Description of Larva and Pupa. 
Nonagria (Sosamia) Inferens Wlk. — The larva on its 
under surface is of a whitish-yellow colour, and the upper has a 
somewhat pink reflection in most specimens. 
The head is brown (sometimes darker), sub-quadrate in shape,, 
and has a medium dorsal impression forming a Y. 
The anterior and posterior portions of the body bear some 
stiff outstanding bristles. Segments i, 2, 3, 4, 5, 6, 7, 8, 9, io‘, 
and 1 1 each bear a pair of elongate spiracles placed vertically and 
black in colour. 
There are three thoracic legs, and four abdominal prolegs. 
The latter are borne on segments 6, 7, 8 and 9, the anal segment 
bears the anal prolegs. 
The length of the larvae vary from | to ^ of an inch. 
There is little to be said of the pupa. It is usually of a whitish - 
yellow colour (darker towards the anterior portion) when it first 
changes to this stage. Later it becomes darker. It is of 
cylindrical form, and the posterior part being obtusely pointed. 
It varies in size to about the same proportion as the larva. 
About 10 per cent, of the pupae .gathered were parasitised. 
One of the parasites is a small Chalcid and the other one of the 
Ichneumonidae. 
A Defoliation of Coconut Trees. 
On nth October, with the Inspector of Coconut- Plantations, 
I visited Pusing Bharu, Batu Gajah district, with the object of 
examining the cocontit trees which had been defoliated by 
lepidopterous larvae during March and April of this year. 
The eggs, larvae, pupae and moths, which had in two months 
been present in great profusion, were, when I visited these 
plantations, very scarce, and the few notes which I could collect 
are here given. 
The fcoconut leaves were mined in a longitudinal manner, and 
as many as 40 vacated pupa cases were observed on one leaf. 
These cases are of a silky-white colour, depressed and ovoid in 
shape, and invariable on the under side of the leaf where the 
larvae feed. 
A few larvae were found and these taken in the hope of rearing 
them, but as I was unable to give careful attention to them they 
died. I therefore cannot say what the adult insect is, but it is 
probably one of the Iortricidae. According to the owner of 
the plantations this same disease appeared some seven years ago,. 
