60 . SUANA CONCOLOR, 
and Eastern Bengal differ from those attacking the same tree 
in Madras and the Central Provinces, and that boththese would 
seem to differ from those to be found in the Siwalik sal forests 
of the North-West Previnces, 
Protection and Remedtes. 
The pupz in their long semi-elliptical shaped cocoons are 
so easily seen that in nurseries and plantations, when this 
insect is giving trouble, their collection should be enforced, all 
cocoon cases with their contents being burnt or destroyed 
in some suitable manner. Until the life history of the larva is, 
however, known, it Is not possible to state how it might be best 
attacked, 
Points in the life history requiring further observation. 
1. Where the eggs are laid ? 
2. When the young caterpillars hatch out? - Length of 
time spent in the larval stage ? 
3. Is there more than one generation in the year—._ 
(1) In the Siwalik s&l forests ? 
(ii) In other warmer parts of India ?. 
