A little-known genus Falsorsidis Breuning, 1959 (Coleoptera: Cerambycidae: Lamiinae), so far known only from Vietnam, is newly recorded from China upon the discoveries of its type and until now the only known species, F. griseofasciatus (Pic, 1926), from Guangxi, and F. lichaoi sp. nov. from Yunnan. The genus is proposed to be transferred from the tribe Desmiphorini to Lamiini and is considered to be closest to the Oriental genus Granulorsidis Breuning, 1980. Description and illustrations of the habitus, endophallic structure and major diagnostic features for the involved taxa are provided.