The earwig Proreus simulans (Stål, 1860) is newly reported from southern parts of Korean Peninsula. The natural photos were taken from Gwangyang for the first time in 2013, at last the voucher specimens are collected by light trap from Suncheon in 2018. The species widely distributes throughout the Oriental Region, prefers to live in lowland paddy fields, frequently hides inside grass leaves, so regarded as an important predator of leaf folders on rice, or natural enemy of corn borer. The earwig belongs to Chelisochidae which is also newly recognized family in Korea. The order Dermaptera diversity of Korea is estimated that about 24 species 14 genera 6 families until now.

• Taewoo Kim(National Institute of Biological Resources)
• Sangsu Kim(Gichan Engineering Co. Ltd.)