A new tiger moth, Micrarctia kautti sp. n., from southwest China, Sichuan is described. A diagnostic comparison with Micrarctia trigona (Leech, 1899) is provided. During recent years the Chinese Arctiini have been intensively collected and explored (Dubatolov, 1996a; Dubatolov, 1996b; Dubatolov, 2003; Dubatolov, Kishida & Wu, 2005; Fang & Cao, 1984; Fang, 2000 and numerous other publications) s...