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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Petterson, Merrill - Wielgas, Ronald S
    Type: Article
    In: The Journal of Research on the Lepidoptera
    Volume: 12
    Issue: 4
    Date: 1973
    Page Range: 197--198
    Publication Info: Arcadia, Calif, Lepidoptera Research Foundation,