Based on two well-preserved specimens from late Eocene Baltic amber, a new fossil species belonging to the family Trogossitidae, Seidlitzella hoffeinsorum sp. nov., is described. This is the second known fossil species of the tribe Gymnochilini and the second known species of the genus Seidlitzella. The systematic and biogeographical relations of the genus to other members of the Gymnochilini are discussed. It is hypothesised that the extant eastern Mediterranean species Seidlitzella procera may be phylogenetically related to the genus Phanodesta, today distributed in New Zealand, New Caledonia, Lord Howe Island, Juan Fernandez Island and Sulawesi.