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Rajan, T., Sureshan, P.M. and Kumar, P.G. 2020. Additions to the knowledge on the genus Carinostigmus Tsuneki (Hymenoptera: Crabronidae: Pemphredoninae) from the Indian subcontinent with the description of two new species. Zootaxa. 4881, 1 (Nov. 2020), 152–164. DOI:https://doi.org/10.11646/zootaxa.4881.1.9.