SUMMARY OF THEIREPORT ON THE 
POMELOE MOTH. 
== + 
AV@ST the request of the British Resident of Pérak, I made 
2 ( es an enquiry into the cause of the destruction of all the 
pomeloe fruit grown in the Residency gardens at 
Kwala Kangsa, and have ascertained, from actual 
observations and breeding experiments, that it is primarily 
to the attacks of the caterpillars of a small moth, that the 
loss is due. « 
The life history of this insect is, as far as I have been able 
to observe it, as follows :— 
The eggs are laid singly and in small irregular patches on 
the lower side of the fruit, and when they hatch out, the young 
caterpillars eat their way into the fruit making a number of 
minute holes through the rind, generally over an area of 
about the size of a shilling. The pith under this patch is 
riddled with holes, and gum is often subsequently found, both 
in the cavities of the rind, and also on the outside of the fruit. 
As the caterpillars increase in size, they eat their way 
through and through the fruit, and make holes through the 
rind to eject refuse, and also possibly to obtain air. To these 
holes uneatable portions of the fruit and fecal pellets are 
carried by the caterpillars and ejected. 
The caterpillars, which are active, quick-moving insects, 
jump and twist when touched, and, for caterpillars, can pro- 
gress with considerable speed. On arriving at maturity, they 
leave the fruit, and descending to the ground bury themselves 
in the earth to undergo the change into the pupa state; the 
caterpillars make in the earth cells of agglutinated earth, 
lined with white silk; they measure 0.7 inch in length, 0.4 
inch in breadth, and 0.3 inch in depth. 
On the twelfth day after quitting the fruit, the transform- 
