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TRANSACTIONS

OF THE

NEW ZEALAND INSTITUTE,

1900.





I.—ZOOLOGY.




Art. I.—Synopsis of the Diptera brachycera of New Zealand.

By Captain F. W. Hutton, F.R.S.

[Read before the Philosophical Institute of Canterbury, 3rd October, 1900.]

In 1874 I published in our Transactions a list of the New Zealand Diptera which had been described before 1870, and in the same year Mr. A. G. Butler, of the British Museum, edited the "Insects of the Voyage of H.M.S. 'Erebus' and 'Terror,'" in which two new descriptions were given.

In 1881 the Geological Survey of New Zealand published a catalogue of our Diptera—compiled by me—which gave the original descriptions of the species, but without making any attempt to point out mistakes. In 1884 Mr. W. Kirby, of the British Museum, supplemented this catalogue by describing, in the "Transactions of the Entomological Society of London," three of the species which had been named, but not described, by Adam White, and by adding the names of four others which were unknown to me.

In 1896 Mr. P. Marshall published, in vol. xxviii. of the "Transactions of the New Zealand Institute," two papers which added largely to our knowledge of the Cecidomyidæ and the Mycetophilidæ, and last year I undertook the Tipulidæ.

The time, I think, has now arrived when a revision of the whole of our Brachycera may be made with some prospect of success, and the present paper has for its objects—(1) The