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  1. By: Ritland, D B
    Type: Article
    In: The Journal of Research on the Lepidoptera
    Volume: 25
    Issue: 3
    Date: 1987
    Page Range: 179--187
    Publication Info: Arcadia, Calif, Lepidoptera Research Foundation,
  2. By: Ritland, D B
    Type: Article
    In: Journal of the Lepidopterists' Society
    Volume: 44
    Date: 1990
    Page Range: 163--173
    Publication Info: [New Haven, Conn.] Lepidopterists' Society 1959-