Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Ives, W. G. H., J. J. Lawrence, and J. K. Robins. 1974. Prairies region. Pages 70-71 in Important forest insects. Canada Department of the Environment, Canadian Forestry Service, Forest Insect and Disease Survey Annual Report 1973. 101 p.