Arthromacra W. Kirby, 1837 is a rather small genus of colourful Lagriinae Latreille, 1825 (Tenebrionidae Latreille, 1802) distributed in the Holarctic and Oriental realms. In the present paper the following two new species from continental China are described and illustrated: Arthromacra distincta sp. nov. (Southwest China: Yunnan) and A. zhongtiao sp. nov. (Central China: Shaanxi). Arthromacra caerulescens (Pic, 1914) and A. donckieri (Pic, 1910) are redescribed based on the study of the name-bearing types and new material. An updated key to Arthromacra species from mainland China and the Korean Peninsula is presented. A checklist of Arthromacra of the Oriental Region is presented.