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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Hertig, M A R S H A L L - Fairchild, Graham Bell
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 52
    Date: 1950
    Page Range: 91--95
    Publication Info: Washington, etc, Entomological Society of Washington,