First fossil trichophyine rove beetle from mid-Cretaceous amber of northern Myanmar (Coleoptera: Staphylinidae: Trichophyinae)

Trichophyinae is one of the smallest subfamilies megadiverse rove-beetle family Staphylinidae, with only 18 species in single extant genus Trichophya Mannerheim. Here we describe first fossil representative mid-Cretaceous amber from Kachin, northern Myanmar. †Trichophya minor sp. nov. unusual having non-filiform thick antennae, similar to T. antennalis Cameron, 1932 India, but this new can readily be distinguished latter by much smaller and smoother body. Our finding indicates that subfamily had been originated Albian–Cenomanian boundary, also showing a potential Gondwanan distribution at time. We briefly discuss miniaturization trend Burmese beetles.