388 CALANDRA SCULPTURATA, Gyil, 

~ 
sound, as I could not account for the general absence of natural 
regeneration from seed of this species. The result of the investi- 
gation showed that about 80 per cent, were unsound. Some of 
the acorns were collected from trees and others from the ground, 
where they had quite recently fallen. The unsoundness of the 
acorns was found to be due to the attack of a weevil beetle.” 
Protection and Remedies. 
The best protective measure to take for pests of this nature 
is to collect and burn, when at all feasible, the whole seed crop 
during a bad attack, as recommended on pages: 160-161 of No, 2 
of these notes in the case of the Quercus semicarptfolia attacked 
by the fly Callirhytis semicarpifoliz. If this were done in 
patches of forest only it would have the effect of greatly dimi- 
nishing the numbers of the weevils on those areas, and the next 
crop of acorns would thus be attacked by a very much smaller 
number of beetles. Children could be put on at small cost to 
do the collection work over certain areas, and this work should 
be begun as soon as the acorns begin to drop. 
Potnts in the life-history requiring further observation. 
1, Do the June beetles immediately lay eggs in the young 
acorns to be found on the oak trees at the time they 
mature and emerge ? 
2. If this is the case, isa second generation of the insect 
gone through by the autumn ? ; 
3. If mature beetles issue in the autumn, do they pass through 
the winter in this stage or do they at oncelay eggs 
in the ripe acorns to be found on the trees at this 
period of the year? If eggs are laid, is the winter 
passed through in the egg stage or do grubs emerge 
and spend the winter feeding inside the acorns? 
4. The length of time spent in the grub and beetle stages. 
5. The number of generations in the year. 
