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Lopes, R.B. and Noll, F.B. 2024. Taxonomic notes on the Zethus olmecus de Saussure, 1875 species group (Hymenoptera, Vespidae, Eumeninae), with the description of five new species. Zootaxa. 5437, 3 (Apr. 2024), 363–383. DOI:https://doi.org/10.11646/zootaxa.5437.3.3.