A new species of genus Acrossus Mulsant, 1842 (Scarabaeidae, Aphodiinae, Aphodiini) from South Korea.

A new species of the genus Acrossus Mulsant, 1842, Acrossusbaei sp. nov. from South Korea, is described and illustrated on the basis of morphology and mitochondrial COI sequences. The species was compared with four related species; Acrossusatratus (Waterhouse, 1875), A.humerospinosus (Petrovitz, 1958), A.luridus (Fabricius, 1775), and A.superatratus (Nomura & Nakane, 1951). The taxonomic status and diagnostic characters of the new species are discussed. A key to species of the genus Acrossus in the Korean Peninsula is given.