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  1. By: Pitz, Kevin M - Sharkey, Michael J.
    Type: Article
    In: Journal of Hymenoptera research
    Volume: 14
    Date: 2005
    Page Range: 92--95
    Publication Info: Washington, D.C, International Society of Hymenopterists, [1992-
  2. By: Pitz, Kevin M - Sharkey, Michael J.
    Type: Article
    In: Journal of Hymenoptera research
    Volume: 16
    Date: 2007
    Page Range: 167--177
    Publication Info: Washington, D.C, International Society of Hymenopterists, [1992-