Abstract
Three species of the subgenus Eurysunius Reitter (Coleoptera: Staphylinidae, Paederinae, Astenus) from Türkiye are described and illustrated: Astenus koszela sp. nov. (Kastamonu province), A. sinopensis sp. nov. (Sinop province), and A. hatice sp. nov. (Tokat and Amasya province). The subgenus is now represented in Türkiye by 31 species, 30 of them are only known from the country. The distributions of these species in Türkiye are mapped.
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