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  1. By: Walters, Carl J
    Type: Article
    In: The Canadian field-naturalist
    Volume: 86
    Issue: 2
    Date: 1972
    Page Range: 186--187
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Walters, Carl J - Peterman, Randall M
    Type: Article
    In: Quaestiones entomologicae
    Volume: 10
    Issue: 3
    Date: 1974
    Page Range: 177--186
    Publication Info: Edmonton, Dept. of Entomology, University of Alberta,