
CALLIRHYTIS SEMICARPIFOLI As. 101 

and burn all the fallen seeds. If this is done thoroughly it is 
true that the small proportion of good seed will be destroyed 
but along with it enormous numbers of larva, pupz, etc., will be 
killed off: asa result, the eggs laid being so much fewer in 
number, in the following year there will be every chance of 
obtaining a large crop of good seed. This remedy, when it is 
applicable, could be usefully tried in the case of cones and 
other fruits the seed of which suffers under similar attacks. 
(See No. 1, p. 110 of these notes.) 
Points in the life history requiring further observation, 
1, When are the eggs laid by the fly and where? Is 
it in the flowers or on the twigs adjacent to 
them ? 
2, When the young larvee hatch out of the eggs. 
3. Length of time spent in the larval stage. 
4. Length of time spent in the pupal stage. 
5. Does the 2, on leaving the acorn, at once pair and 
lay her eggs? 
6. What parasites, insect and fungoid, attack this pest? 
HETEROCEROUS ALLY OF C. SEMICARPIFOLI@, CAMERON. 
Inside the black-coloured acorns attacked by the above 
described hymenopterous fiy were also some small (probably 
micro-lepidopterous) caterpillars, These were of all sizes up 
to about {rd inch in length and two different species were 
present— 
(1) In colour whitish-translucent, with blackish-green 
head, anda smali partial collar of the same colour 
on the top of the dorsal surface of the first 
segment, 
(2) Small brownish hairy larvee, about 4th inch in length, 
with numerous short tufts of hair with long hairs 
interspersed amongst them, (See PI. VII, fig. 4.) 
These larve appeared to be burrowing within the acorn 
amongst the hymenopterous cells. Both hymenopterous and 
lepidopterous larve were cut out of the nut practically along- 
side one another. 
