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By: Ulysséa, Mônica Antunes - Brandão, Carlos Roberto FerreiraType: ArticleIn: Papéis Avulsos de Zoologia (São Paulo)Volume:Series:Issue:Date: 2012-01-01Page Range:Publication Info:Subjects: Caatinga Formicidae Hymenoptera northeastern Brazil Oxyepoecus browni gyne Oxyepoecus regularis sp. nov