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By: Alqarni, Abdulaziz S. - Hannan, Mohammed - Engel, Michael S.Type: ArticleIn: ZooKeysVolume: 172Series:Issue:Date: 2012Page Range: 89-96Publication Info: Pensoft Publishers 2012Subjects: Anthophila Apinae Apoidea Bees Eucerini Qatar Saudi Arabia taxonomy Tetraloniella