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Please read BHL's Acknowledgment of Harmful Content
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  1. By: White, Raymond R. - Singer, Michael C.
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 63
    Issue: 4
    Date: 1987
    Page Range: 341--345
    Publication Info: San Francisco Pacific Coast Entomological Society
  2. By: Singer, Michael C. - Ehrlich, Paul R.
    Type: Article
    In: The Journal of Research on the Lepidoptera
    Volume: 30
    Issue: 3-4
    Date: 1993
    Page Range: 248--256
    Publication Info: Arcadia, Calif, Lepidoptera Research Foundation,