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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Rock, E A - Jackson, Dale
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 87
    Date: 1985
    Page Range: 135--141
    Publication Info: Washington, etc, Entomological Society of Washington,
  2. By: Rock, E A - Jackson, Dale
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 88
    Date: 1986
    Page Range: 316--319
    Publication Info: Washington, etc, Entomological Society of Washington,
  3. By: Rock, E A - Jackson, Dale
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 91
    Date: 1989
    Page Range: 66--70
    Publication Info: Washington, etc, Entomological Society of Washington,