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Augusto, S. C.; Garófalo, C. A. (2004-11-01). "Nesting biology and social structure of Euglossa (Euglossa) townsendi Cockerell (Hymenoptera, Apidae, Euglossini)". Insectes Sociaux. 51 (4): 400–409. doi:10.1007/s00040-004-0760-2. ISSN0020-1812. S2CID13448653.