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Published online by Cambridge University Press: 31 May 2012
To Mr F. Johansen I am indebted for a small collection of Corixidae obtained by dissecting the stomach of a 28 centimeter male specimen of the Arctic Grayling (Thymallus signifer Richards.) captured in a small tributary near the mouth of the Churchill River, Manitoba. Three species are represented, one of which is described below.
* —Contribution from the Division of Systemtic Entomology, Entomological Branch, Department of Agricultural, Ottawa, Ontaria.