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Muniz, D.B. and Melo, G.A.R. de 2021. A new species of the wasp genus Trypoxylon from southern Brazil, with notes on the systematics of Pisoxylon (Hymenoptera, Crabronidae). Papéis Avulsos de Zoologia. 61, (Mar. 2021), e20216136. DOI:https://doi.org/10.11606/1807-0205/2021.61.36.