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Published online by Cambridge University Press: 31 May 2012
During the past two summers, we have captured and reared a species of Pseudexentera Heinr. which was breeding in large numbers on the wild apple trees of the Ottawa district. It was also commonly noticed flying around the hawthorn (Crataegus sp.) of this area, and while it was not reared from this plant it is probable that Crataegus is another food-plant.
* Contribution No. 2202, Division of Entomology, Science Service, Department of Agriculture, Ottawa.