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  1. Geographical distributions of Bembix (Hymenoptera, Crabronidae, Bembicinae) in southern Africa, with notes on biology
    By: Gess, Friedrich - Gess, Sarah
    Type: Article
    In: Journal of Hymenoptera Research
    Volume: 36
    Date: 2014
    Page Range: 53-130
    Publication info: Pensoft Publishers 2014
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  2. Notes on the nesting of three species of Megachilinae in the Dubai Desert Conservation Reserve, UAE
    By: Gess, Sarah - Roosenchoon, Peter
    Type: Article
    Date: 2017
    Publication info: Pensoft Publishers 2017
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  3. A preliminary survey of flower visiting by aculeate wasps and bees in the Dubai Desert Conservation Reserve, UAE
    By: Gess, Sarah - Roosenchoon, Peter
    Type: Article
    In: Journal of Hymenoptera Research
    Date: 2016
    Publication info: Pensoft Publishers 2016
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