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insects in the first brood, and the small size of the indivi- 
duals composing it, to detect its first appearance without 
the aid of a glass. Very careful examination during these 
months is requisite to detect its presence, and a pair of bino- 
culars is necessary for this purpose. It is on account of the 
shade afforded by the lower leaves that these are usually 
chosen first and detection of the disease is thus somewhat 
easier than it might otherwise be. The second brood is con- 
siderably larger and the brown appearance of the leaves 
show that some disease is proceeding. By the time the 4th 
brood has finished the trees in the affected acreage present 
an appearance resembling that which world be caused by a 
fire passing through the estate. The pest after running a 
course of 8 months then disappears, but is likely to return 
in two* years. 
For the first and second broods oviposition is on the 
lower leaves, but as these become mined the later broods 
gradually work to the upper leaves •until the whole of the 
foliage is dead. Uusually the very fresh leaves are not 
touched. The larva hatches in 3-5 days and commences to 
nibble away small portions of the epidermis; when about 
a week old the larva discontinues this nibbling, and mines 
the leaf on the underside in straight longitudinal narrow 
lines. 
During the fourth brood as many as forty thousand 
caterpillars may be present on one tree and the damage 
caused by such a mass of insects will be easily understood. 
In four weeks the larva is adult, spins its cocoon, and pu- 
pates. A week to nine days later the moth emerges, fresh 
individuals continuing to make their appearance for about 
eight days, and for fifteen to twenty days they may be seen 
flying in enormous numbers around the trees. In the very 
early morning they are not active, but as soon as the sun 
rises a little they commence to fly about the flowers of the 
coconut trees whereon they feed. At midday they may be 
seen resting quietly, frequently in copulation, on the dead 
lower leaves and on the trunk of the coconut tree; when 
flying they somewhat resemble large midges. Thus the 
period taken for the completion of the life cycle from egg 
to moth is 5-6 weeks and approximately ten days for the 
appearance for a further brood increases the time to 6-| to 
74 weeks. Five broods may appear before the insect is re- 
duced by parasites. A further report of this pest is to be 
published soon. 
