Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
McGugan, B. M., W. H. Haliburton, and J. E. McDonald. 1952. Province of Ontario [Scolytidae, p 52]. Canada Department of Agriculture, Science Service, Division of Forest Biology, Forest Insect and Disease Survey, Annual Report 1951:41-58.