The genus Athetis is a cosmopolitan genus of the subtribe Athetina (Noctuidae: Xyleninae (Fibiger & Lafontaine 2005; Lafontaine & Fibiger 2006). It comprises about 211 described species from the world to date, with about 150 species known from South Palaearctic and Oriental Regions (Kononenko 2005). In the Korean peninsula, 12 species was reviewed by Kononenko & Han (2007). In this study, key to the Korean Athetis species is provided with the photos of adults and genitalia for each species.