The oldest Micropeplus (Coleoptera, Staphylinidae, Micropeplinae) species from mid-Cretaceous Burmese amber

The oldest species of Micropeplus Latreille (1809), Micropeplus pengweii Jiang, Peng & Wang sp. nov. is described from the mid-Cretaceous Burmese amber. The new species can be clearly attributed in the genus Micropeplus by sharing a lot of obviously similar characters with extant species. The new discovery enriched our knowledge of the biodiversity of staphylinid beetles in the Cretaceous.