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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Zehnder, Geoffrey W. - Trumble, John T. - White, Walter R.
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 85
    Date: 1983
    Page Range: 564--574
    Publication Info: Washington, etc, Entomological Society of Washington,