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  1. By: Gess, F W - Gess, Sarah K
    Type: Article
    In: Journal of Hymenoptera research
    Volume: 36
    Date: 2014
    Page Range: 53-130
    Publication Info: Washington, D.C International Society of Hymenopterists
    Subjects: Bembix  distributions  flower associations  nesting  prey  Sand wasps  Southern Africa