A new species of Minanga Cameron (Hymenoptera: Braconidae: Sigalphinae), Minanga brevicarinata Tan & Chen, sp. nov., from China is described and illustrated, Previously known mainly from the Afrotropical region (eight species), with one species recently described from the Nearctic region, the genus is recorded for the first time from the boundary of Palearctic and Oriental regions. A new subgenus, Anopliminanga subgen. nov., is proposed to include two species (Minanga achterbergi Sharkey and Minanga brevicarinata sp. nov.). A key to species of the genus Minanga is updated. The distribution of Minanga and the new subgenus are briefly discussed.