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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Pfaffenberger, G S
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 58
    Issue: 3
    Date: 1983
    Page Range: 240--244
    Publication Info: San Francisco, Pacific Coast Entomological Society,
  2. By: Kingsolver, John M. - Pfaffenberger, G S
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 82
    Date: 1980
    Page Range: 293--311
    Publication Info: Washington, etc, Entomological Society of Washington,