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The eggs are brown in colour and are laid on the 
leaves. They hatch in about 7 days and the grubs 
feed on the leaves for about 33 days, when they 
change to pupae, remaining in that state for about 
7 days. 
The beetles have a yellowish coloured thorax and 
black wing-covers : the grubs and pupae are yellowish 
in colour. 
Nurseries should not be made under coconut trees,, 
but should be prepared under other trees or under 
artificial shade. All attacked seedlings, before trans- 
planting or “ supplying,” should be immersed in a 
solution of lead arsenate. 
After transplanting, if control is still considered 
necessary, the insect in its several stages should be 
hand-collected or sprayed with lead arsenate, parti- 
cular attention being paid to direct the spray towards 
the centre of the palm. 
Artona (Brachartona) eatoxantha, Hamps., 
(Zygaenidae) . 
This insect is probably present in small numbers 
throughout Malaya, but only comes into prominence 
during a sudden increase, when the damage caused 
by the caterpillars gives the coconut leaves the 
appearance of having been scorched by fire. 
The caterpillars when full grown are about 1/2 inch 
in length and have conspicuous violet longitudinal 
markings: the moth has brownish coloured wings 
and a yellow body. 
The caterpillars cause a serious reduction in yield 
when they are present in large numbers, but so 
far they have always been controlled by their 
