A new cicada genus and a new species, Miniterpnosia chorus n. gen., n. sp., is described from Laos. Miniterpnosia n. gen. is closely related to Yezoterpnosia Matsumura, 1917 and Euterpnosia Matsumura, 1917, and therefore it is placed in the subtribe Leptopsaltriina Moulton, 1923 of the tribe Cicadini Latreille, 1802. A species of Terpnosia Distant, 1892 is transferred to Miniterpnosia n. gen. to become Miniterpnosia mega (Chou & Lei, 1997) n. comb.
Cicadidae, Yezoterpnosia, Euterpnosia, Terpnosia, new genus, new species, new combination.