Published online by Cambridge University Press: 31 May 2012
In his recent Revision of the Oecophoridae (1941, Proc. U. S. N. M. Vol. 90, No. 3107) Gates Clarke (p. 196) records the larva of Depressaria betulella Bsk. as feeding on both Betula and Ostrya. As material bred by us from Ostrya this past summer in the Ottawa region did not at all match with our series of the birch-feeder I have made a genitalic study of the species of this group in the Canadian National Collection in order to check up on the matter.
* Contribution No. 2204, Division of Entomology, Science Service, Department of Agriculture, Ottawa.