Four new zopherid species are described and illustrated from Eocene Baltic amber: Xylolaemus legalovi sp. nov., X. richardklebsi sp. nov., Diodesma slipinskii sp. nov., and Endophloeus gorskii sp. nov. A key to species of Xylolaemus Redtenbacher, described from Baltic amber, and a checklist of fossil Zopheridae are provided. The montane distribution of several recent representatives of dendrophilous zopherids in Europe and the connection of such a distributional type with modern human activity is discussed.