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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Bao, Nonggang. - Robinson, William H
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 92
    Date: 1990
    Page Range: 416--421
    Publication Info: Washington, etc, Entomological Society of Washington,
  2. By: Robinson, William H - Bao, Nonggang.
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 90
    Date: 1988
    Page Range: 401--406
    Publication Info: Washington, etc, Entomological Society of Washington,