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Published online by Cambridge University Press: 31 May 2012
Heretofore the genus Canocephus, Konow, has been known only from Siberia, and by a single species. Two undescribed species from western Unitd States occur in Dr. Alex D. MacGillvray's collection (Cornell University), one of them also in the collection of the American Entomological Society, and at the request of Dr. MacGillivray I here describe them.