New amber records of Burmusculidae (Hymenoptera) from mid-Cretaceous Myanmar

Two new species, Burmusculus Plexus sp. nov. and Burmusculus mutatus sp. nov. of Burmusculus Zhang and Rasnitsyn, 2018 in Burmusculidae, are described from the mid-Cretaceous amber of northern Myanmar. A key to all seven species of Burmusculus and detailed comparisons among the species are provided. Veins 1-Rs, 1-M, 1cu-a, 2m-cu and 2-Rs with different states suggest interspecific diagnostic characters within Burmusculus.(c) 2023 Elsevier Ltd. All rights reserved.