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  1. By: Prange, Robert K., - Aderkas, P. von
    Type: Article
    In: The Canadian field-naturalist
    Volume: 99
    Issue: 4
    Date: 1985
    Page Range: 517--532
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Aderkas, P. von - Peterson, B V
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 89
    Date: 1987
    Page Range: 532--547
    Publication Info: Washington, etc, Entomological Society of Washington,