New ant-like stone beetles in mid-Cretaceous amber from Myanmar (Coleoptera: Staphylinidae: Scydmaeninae)

Three genera and species of Scydmaeninae (Staphylinidae) are described as new from mid-Cretaceous Burmese amber: Ektatotricha paradoxa Chatzimanolis, Engel & Newton gen. et sp. nov. and Electroatopos castaneus Chatzimanolis, Engel & Newton gen. et sp. nov. in the emended supertribe Hapsomelitae, and Kachinus antennatus Chatzimanolis, Engel & Newton gen. et sp. nov. in the supertribe Scydmaenitae. The supertribe Hapsomelitae is newly diagnosed and doubt cast on one of its putative apomorphies, with the development of a “patella” considered a misinterpretation by the original authors.