3. “On the Occurrence of Ceratitis capitata [the Mediterranean fruit-fly] in New Zealand,” by A. H. Cockayne.

Until this year there has been no record of the presence of larvæ of Ceratitis capitata in New-Zealand-grown fruit. During the past summer, however, this destructive dipteron has been found breeding in two widely separated localities in New Zealand—namely, in the vicinities of Napier and Blenheim. This fact has been widely circulated in the Press of the Dominion, but it seems desirable that it should be recorded in the Proceedings of a scientific society, for the benefit of entomologists in other lands. Ceratitis capitata appears to be on the increase in many parts of the world, and is gradually extending its geographical range in temperate climates. Entomologists are agreed that this Trypetidon has its native home in Brazil, and for this reason several well-known entomologists have visited that country in search of natural parasites, but up to the present but little in this line has been accomplished. Professor Hempel, of Sao Paulo, in Brazil, who has given this matter some considerable attention, has said that in his district the action of natural enemies has had no effect whatever on the control of Ceratitis.

Exhibits.—1. Mr. C. E. Adams exhibited three recent forms of calculating-machine, and gave illustrations of the modes in which various numerical operations were performed by each.

2. Mr. A. Hamilton, Director of the Colonial Museum, exhibited a collection of Maori implements recently received by the Museum from Southland.