CLANIA CRAMERI, Westwood. 
wood-boring Arde/a caterpillar described on page 438 is accele- 
rated by defoliation due to the lary of this Psychid, and it is 
of importance that its life-history should be fully worked out 
so that we may know how many generations it passes through 
in the year, z.e., how many times in the year the trees run the 
danger of being defoliated. 
Protection and Remedies. 
Undoubtedly the best method of reducing the attacks of 
this pest is by the collection of the larval cases. Owing 
to the thin light foliage of the tree these cases, once they 
have been pointed out as the source of damage, are easily 
recognisable and very easily seenin the plantations, Their 
careful collection in years of serious infestation would 
well repay the expenditure incurred, and would practically 
stamp out the pest. The periods at which this collection should 
be undertaken depend upon the number of generations passed 
through in the year. Forthe June-July generations of larve 
the best time would appear to be the latter half of June, and for 
the October generation during December-January 
Points in the life-history requiring further observation. 
1. When the eggs of the first generation, 1.¢,, that 
producing the June-July caterpillars, are laid. 
2. How long the eggs of the first generation take to 
hatch after they have been laid. 
3. Time spent in the larval stage of the first generation. 
4. The number of generations in the year. This is 
extremely important, as it is necessary to know 
how many times inthe year the trees may be 
subject to this defoliation, Are there more than 
two? 
