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THE AUSTRALIAN NATURALIST. 55 
Conditions: The essay should, as far as possible, be 
accompanied by specimens and sketches, and should deal 
rather with the habits of the insects in relation to the 
plant than consist of a mere list of species found on this 
particular wattle. 
The essays are to be lodged with the Secretary not 
later than May 31st, 1915. 
E. CHEEL, Hon. See. 
———— ee 
FLY PARASITES OF THE CASE-MOTH. 
By E. H. Zeck. 
During August, 1914, an apparently full-grown larva 
of Saunders’ case-moth, Metwra elongata, was given to me 
by Mr. A. A. Mitchelhill, of Mosman, who had observed 
it clinging to the wall of a»weatherboard building. 
The case was covered with pieces of rose stems about 
three-quarters of an inch in length. 
On being placed in a breeding cage it refused. food, 
and about a week later it was lying on the bottom. I 
then saw two or three small brown pupa eases lying along- 
side, and on cutting the case open I found the whole of 
the interior filled with these pupae, while of the larva, only 
the dried skin remained. There were no less than 108 
pupae, their average length being 7 m.m. About a month 
later the pupae were all found to have died; the cause 
of their death I do not know, ag they all seemed to be 
just about to emerge. As none have emerged, I am un- 
able to name the species of these flies. Probably they are 
Tachinidae. 
NOTES ON THE FLORA AND FAUNA OF CASINO 
DISTRICT, OCTOBER, 1914. 
By Miss F. M. Irby. 
Along the creek banks many of the brush trees are 
in flower; towering above most others, the Grevillia ro- 
busta, a brilliant mass of orange, with honey-eaters and 
parrots chattering amongst the branches. The big white- 
and-wine coloured Hibiscus (green Kurrajong). The 
star-like white-and-yellow Hymenospermum flavum, two 
Nepheliums, Pittosperum revolutum, Dysoxylon rufwm. 
