A faunistic review of beetle families Tetratomidae and Melandryidae (Coleoptera: Tenebrionoidea) of Poland

Based on an extensive survey of museum and private collections, distributional records of the Tetratomidae and Melandryidae in Poland are verified and updated. Collection data of nearly 2000 voucher specimens belonging to 35 species are listed. Two taxa are reported as new in Poland: Orchesia grandicollis and Dircaea australis. Due to unclear diagnoses, two species belonging to the genus Zilora were possible to identify only tentatively, and determination problems are discussed. Distributions of all 37 species of Tetratomidae and Melandryidae currently known to occur in Poland are summarized.