To the knowledge of the genus Tachycines Adelung, 1902 (Orthoptera: Rhaphidophoridae: Aemodogryllinae)

Tachycines (Gymnaeta) tiunovi sp. n. is described from the Yunnan Province of China. The new species is most similar to T. (G.) dianxicus Qin, Liu et Li, 2019, T. (G.) fallax (Zhang et Liu, 2009) and T. (G.) chenhui (Rampini et Di Russo, 2008) but differs from them in the smaller body size and the shape of male genitalia. The distribution map of T. (Tachycines) asynamorus in the Caucasus is provided. This synanthropic species is recorded for the first time from the southern Russia (Krasnodar Region: Sochi), Abkhazia and Georgia.