Abstract
A new species of pelecinid wasp, Peleciserphus minaevi gen. et sp. nov., is described from mid-Cretaceous Kachin amber. The genus Stelepelecinus Guo, Shih et Ren, 2016 is synonymous with Eopelecinus Zhang, Rasnitsyn et Zhang, 2002 and a new combination, Eopelecinus longus (Guo, Shih et Ren, 2016) comb. nov., is established. A new species, Eopelecinus christophi sp. nov., is described from mid-Cretaceous Kachin amber based on a male inclusion. A new name, Eopelecinus wangae nom. nov., is established for Stelepelecinus minutus Wang, Shih et Gao, 2024. A key to all Eopelecinus males is provided. The segmentation features of the male metasoma of some pelecinids are discussed.
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