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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Kittle, P D
    Type: Article
    In: Entomological news
    Volume: 88
    Date: 1977
    Page Range: 67--68
    Publication Info: [Philadelphia], American Entomological Society, 1925-
  2. By: Kittle, P D
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 84
    Date: 1982
    Page Range: 157--164
    Publication Info: Washington, etc, Entomological Society of Washington,
  3. By: Kittle, P D
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 93
    Date: 1991
    Page Range: 945--945
    Publication Info: Washington, etc, Entomological Society of Washington,