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  1. By: Robinson, Harold Ernest, - Skvarla, John
    Type: Article
    In: Journal of Hymenoptera research
    Volume: 38
    Date: 2014
    Page Range: 1-13
    Publication Info: Washington, D.C International Society of Hymenopterists
    Subjects: Asteraceae  Compositae  Oocephala  pantoporate pollen  Polydora