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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Metzler, Eric H
    Type: Article
    In: Journal of the Lepidopterists' Society
    Volume: 52
    Date: 1998
    Page Range: 1--8
    Publication Info: [New Haven, Conn.] Lepidopterists' Society 1959-
  2. By: Covell, Charles V. - Metzler, Eric H
    Type: Article
    In: Journal of the Lepidopterists' Society
    Volume: 46
    Date: 1992
    Page Range: 220--232
    Publication Info: [New Haven, Conn.] Lepidopterists' Society 1959-