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By: Sarzetti, Laura - Genise, Jorge Fernando - Sanchez, Maria VictoriaType: ArticleIn: Journal of Hymenoptera ResearchVolume: 39Series:Issue:Date: 2014Page Range: 59-70Publication Info: Pensoft Publishers 2014Subjects: Andrenidae communal nesting fossil bee cells nest architecture nest reutilization Oxaea austera Oxaeinae