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  1. By: Catling, Paul M. - Layberry, Ross A - Crolla, Jeffrey P - Hall, Peter W.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 112
    Issue: 2
    Date: 1998
    Page Range: 335--337
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Crolla, Jeffrey P
    Type: Article
    In: Journal of the Lepidopterists' Society
    Volume: 62
    Issue: 2
    Date: 2008
    Page Range: 106--107
    Publication Info: [New Haven, Conn.] Lepidopterists' Society 1959-