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  1. By: Williams, Justin Kirk - Derr, Dawn P
    Type: Article
    In: Journal of the Botanical Research Institute of Texas
    Volume: 1
    Date: 2007
    Page Range: 431--435
    Publication Info: Fort Worth, Tex, Botanical Research Institute of Texas, 2007-
  2. By: Derr, Dawn P - Cook, Jerry L.
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 107
    Date: 2005
    Page Range: 762--769
    Publication Info: Washington, etc, Entomological Society of Washington,