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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Clarke, Cyril A. (Cyril Astley), - Clarke, Frieda M M - Grant, Bruce S.,
    Type: Article
    In: Journal of the Lepidopterists' Society
    Volume: 47
    Date: 1993
    Page Range: 17--21
    Publication Info: [New Haven, Conn.] Lepidopterists' Society 1959-