The Mecopteran family Eomeropidae contains only a single living species, Notiothauma reedi, known from the Nothofagus forests in southern Chile and Argentina. It is a remarkable species, flattened and extremely roach-like in appearance and habits. It is nocturnal, and scuttles on the forest floor, where it can be collected by laying trails of oatmeal. The larvae are still unknown. The only other genus in the family, Eomerope, is extinct, known only from Cenozoic fossils; thus, N. reedi can be characterized as a living fossil taxon.