Nysius Dallas, 1852, is one of the most common and widely distributed genera under the superfamily Lygaeoidae. Species under this genus are hard to identify due to similarity of the species and variability of the coloration. The Nysius species were collected with the help of aspirator and plastic vile in the perilla crop fields in RDA, Miryang, Korea. Korean species of the Nysius were identified, and three species including a newly reported species N. inconspicuus were recognized. Morphological and genetic characteristics of species were illustrated, and a key to species of Korean Nysius was provided. The DNA barcoding information of N. plebeius and N. inconspicuus were recorded.

• Rameswor Maharjan(Crop Production Technology Res. Div., Nat. Inst. Crop Science, RDA)
• Soondo Bae(Crop Production Technology Res. Div., Nat. Inst. Crop Science, RDA)
• Hwijong Yi(Crop Production Technology Res. Div., Nat. Inst. Crop Science, RDA)
• Wonhoon Lee(Department of Plant Medicine, Gyeongsang National University)
• Yoonnam Young(Crop Production Technology Res. Div., Nat. Inst. Crop Science, RDA)
• Yunwoo Jang(Crop Production Technology Res. Div., Nat. Inst. Crop Science, RDA)