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  1. By: Gordon, David M.
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 76
    Issue: 4
    Date: 2000
    Page Range: 219--233
    Publication Info: San Francisco Pacific Coast Entomological Society
  2. By: Gordon, David M. - Cook, Francis R.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 94
    Issue: 4
    Date: 1980
    Page Range: 460--460
    Publication Info: Ottawa Ottawa Field-Naturalists' Club