SCIENTIFIC AND TECHNICAL SOCIETIES. 
Scientific and Technical Societies. 
LINNEAN SOCIETY OF NEW SOUTH WALES. 
At the October meeting, the President announced the receipt of a very valuable 
addition to the library, of books and pictures bequeathed to the Society by the 
By 
late Mr. F, M. Clements, F.L.S., F.Z.S. 
: PAPERS RBAD. 
1, Notes on Australian Tabanide. By Eustace W. Ferguson, M.B., Ch.M., 
und Gerald F. Hill, F.E.S. i 
The paper deals mainly with synonymy, the results being given of comparison 
of specimens with the types of Australian Jabanidw in the British Museum and 
in the Australian Institute of Tropical Medicine. Seventeen species belonging 
to five genera are dealt with, one species heing described as new. : 
2. Studies in Australian Lepidoptera—Liparide. By A. Jefferis Turner, 
M.D., B.E‘S. 
In Australia, the family Liparid@ is represented by 60 species belonging to 18 
genera, of which 2 genera and 10 species are described as new in this paper. 
3. Descriptions of new forms of Butterflies from the South Pacific. By G. 
A. Waterhouse, B.Sc., BE. 
One species from Fiji, and six new subspecies from Fiji (three), Lord Howe 
Island (two), and the New Hebrides (one) are described as new. ; 
4. A new Avian Trematode, By Eleanor E. Chase, B.Sc. (Communicated by 
Professor S$. J. Johnston, B.A., D.Sc.) : 
A species of Holostomum is described as new. The specimens described were 
obtained from a white-fronted heron, Notophoyw nove-hollandie, at Terrigal, 
New South Wales. 2 ; 
5. Cyanogenesis in Plants. .Part iv. The Hydrocyanie Acid of Meterodendron 
—a fodder plant of New South Wales. By J. M. Petrie, D.Se., F.1.C.; Linnean 
e 
Macleay Fellow of the Society in Biochemistry, 
The foliage of Heterodendron oleaefolia was much used for cattle-feeding 
during the drought. Chemical examination of the leaves shows them to contain 
a cyanogenetic glucoside yielding, when hydrolysed, 0.328 per cent. of hydrocyanic 
acid. The plant is therefore one of the most poisonous cyanogenctic plants 
known, yielding more than twice as much hydrocyanic acid as bitter almonds. 
One ounce of the air-dried leaves forms a lethal amount for one sheep. The 
leaves are invariably found to be deficient in enzyme, and require the addition 
of emulsion in the estimation to bring about the complete decomposition of the 
glucoside, Ot get 
6. Studies in life-histories of Australian Diptera Brachycera. Part i. 
Stratiomytida. No. 1. Metoponia rubriceps Macquart. By Vera Irwin-Smith, 
B.Se., W8., Linnean Macleay Fellow of the Society in Zoology. 
Very little work has been done, in any part of the world, on the early stages . 
of the Brachycera; many soil-inhabiting, dipterous larve, mostly belonging to the 
Brachycera, have been collected and reared through to the imago or to the pupal 
stage. The present paper is the first of a series dealing with this work and gives 
a detailed account of the life history of Metoponia rubriceps Macquart.. It is 
also accompanied by a historical review of published accounts of early stages of 
the Stratiomyiida, « list of the species whose earlier stages have been observed, 
and a comprehensive bibliography. ¥ 
NOTES AND EXHIBITS. 
Mr. W. W. Froggatt exhibited a series of flies from India, including Ohry, 
-somyia beeziana Villeneuve, (. flaviceps Walker, C. rufifacies”" (= OC. albiceps 
W.), (. nigriceps Patton, Lucilia serenissima Fabr. and L. craggii Patton. A 
number of these cause cutaneous myiasis in man and animals in India. Also 
specimens of Bibio imitator from suburban gardens. : 
Mr. G. H. Hardy exhibited a pair of flies, Chrysomyza aenea Fabr., taken in 
a garden at Haberfield, 28th March, 1920. The species is new to the Australian 
faiina. 
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