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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Youngs, D. B.
    Type: Article
    In: Entomological news, and proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia
    Volume: 8
    Date: 1897
    Page Range: 192
    Publication Info: Philadelphia, [Entomological Rooms of the Academy of Natural Sciences],