New pelecinid wasps from mid-Cretaceous Kachin amber, northern Myanmar (Hymenoptera: Pelecinidae)

Abstract

Five new species in the family of Pelecinidae, Abropelecinus rasnitsyni sp. nov., Abropelecinus rectus sp. nov., Allopelecinus ruoyae sp. nov., Eopelecinus strangulatus sp. nov. and Stelepelecinus minutus sp. nov., are described and illustrated based on seven specimens from mid-Cretaceous Kachin amber. The metasoma of Eopelecinuss strangulatus sp. nov. provides new material to support the first pathway for the evolution of male metasoma as proposed by Guo et al. in 2016. Furthermore, the Stelepelecinus minutus sp. nov. with a long and petiole-like first metasomal segment offers new evidence to support the second proposed pathway for the evolution of male metasoma leading to a long-petiolate metasoma of extant male pelecinid wasps.