Some Problems of Insect Biology in the Canadian Arctic

Abstract

Contains summary (by the coordinator) of the Northern Insect Survey, begun in 1947 to study distribution, relative abundance and biology of species of biting flies and other insects in arctic and subarctic Canada. By the end of 1952, 46 areas will have been investigated; each year approx. 125,000 specimens are collected, including several new species and many extensions of previously known ranges. On the basis of these collections, the close relationship between the palaearctic and nearctic insect faunas, the tundra and forest division, the large variations within the species, etc. are briefly discussed.