Contribution to the knowledge of darkling beetles from Türkiye, with four new country records (Coleoptera, Tenebrionidae)

A selection of twelve rarely collected Tenebrionidae species, including new country records, coming from the Turkish Oak Habitat Project (TOHP), a large-scale study of the fauna of old oaks in Türkiye, is highlighted. Pentaphyllus testaceus (Hellwig, 1792), Philhammus aharonii (Reitter, 1910), Stenosis fulvipes (Reiche & Saulcy, 1857), and Tenebrio punctipennis Seidlitz, 1895, are reported from Türkiye for the first time. Occurrence in this country of Pentaphyllus reibnitzi Schawaller & Merkl, 2012, is confirmed. Other treated poorly known species are: Adelostoma subtile subtile Reitter, 1900, Corticeus fasciatus (Fabricius, 1790), Cryphaeus cornutus (Fischer von Waldheim, 1823), Lyphia tetraphylla (Fairmaire, 1856), Metaclisa azurea (Waltl, 1838), Palorus ratzeburgii (Wissmann,1848) and Tenebrio syriacus Zoufal, 1892. Photos of the five species new or confirmed to Türkiye are presented.