Nguyen, L. T. P. ., Tran, N. T. ., Bui, D. T. ., & Ljubomirov, T. . (2021).

Contribution to the genus Pararrhynchium de Saussure (Hymenoptera: Vespidae: Eumeninae), with description of two new species from Vietnam

. Zootaxa, 5082(2), 159–168. https://doi.org/10.11646/zootaxa.5082.2.5