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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Welch, Judith L. - Kondratieff, Boris C
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 67
    Issue: 2
    Date: 1991
    Page Range: 124--134
    Publication Info: San Francisco, Pacific Coast Entomological Society,
  2. By: Kondratieff, Boris C - Welch, Judith L.
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 92
    Date: 1990
    Page Range: 471--482
    Publication Info: Washington, etc, Entomological Society of Washington,
  3. By: Welch, Judith L. - Kondratieff, Boris C
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 93
    Date: 1991
    Page Range: 784--785
    Publication Info: Washington, etc, Entomological Society of Washington,