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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Root, R B
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 42
    Date: 1966
    Page Range: 48--53
    Publication Info: San Francisco Pacific Coast Entomological Society
  2. By: Root, R B
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 88
    Date: 1986
    Page Range: 201--214
    Publication Info: Washington, etc, Entomological Society of Washington,