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  1. By: Schwert, Donald P. - Dance, Kenneth W.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 93
    Issue: 2
    Date: 1979
    Page Range: 180--183
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Ashworth, Allan C. - Schwert, Donald P.
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 93
    Date: 1991
    Page Range: 511--514
    Publication Info: Washington, etc, Entomological Society of Washington,