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  1. By: Oliveira, Favízia Freitas de - Mahlmann, Thiago - Engel, Michael S.
    Type: Article
    In: ZooKeys
    Volume: 153
    Date: 2011
    Page Range: 81-90
    Publication Info: Sofia, Bulgaria Pensoft Publishers
    Subjects: Anthophila  Apoidea  Brazil  Chilicola, Hylaeosoma  Colletidae  taxonomy  Xeromelissinae