Gomes, L.A., Colombo, W.D., Gobbi, F.T., Azevedo, C.O. and Somavilla, A. 2026. Unraveling the diversity of the flat wasp Pseudisobrachium Kieffer, 1904 (Hymenoptera: Bethylidae) from the Brazilian Amazon region. Zootaxa. 5770, 1 (Mar. 2026), 1–111. DOI:https://doi.org/10.11646/zootaxa.5770.1.1.