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Coelho, B.W.T., Felizardo, S.P.D.S. and Engel, M.S. 2014.

Three new species of the bee genus Ruizantheda sensu lato (Hymenoptera: Halictidae: Caenohalictina)

. Zootaxa. 3889, 1 (Nov. 2014), 58–70. DOI:https://doi.org/10.11646/zootaxa.3889.1.3.