COSMIA OCHREIMARGO. 449: 


full growth. They are, consequently, when in numbers, a serious 
defoliating pest. The caterpillar pupates about the third week 
in the month, and the moth issues some time in August—pro- 
bably during the first half of the month. 
It was found somewhat plentifully upon the trees in July 
1902, accompanying the Tineid and numerous Tortrix defolia- 
tors. Thelarva does not spin the leaves together to form a 
shelter, as is the habit of the Tortrices. 
Locality from where reported. 
This insect was found at Deobam(Jaunsar forests) in the- 
North-West Himalayas. Elevation, 9,300 feet. 
Relations to the Forest. 
The caterpillars of the Tineid and Noctuid moths were to 
be found plentifully upon the Kharshu trees in July 1902 
together with the several species of Tortrix, ete., described. 
below. The defoliation caused by this coterie of larve was 
serious, some trees having lost all, or nearly all, the new foliage. 
of the year. Every part of the tree was infested. 
Points in the life-history requiring further observation. 
1. When the eggs are laid and where: 
2. The length of time spent by the larve feeding upon. 
the trees. 
3. The number of generations of the moth in the year. 
