Eugryllacris species from Yunnan, China were investigated from 2018~2021. A new species, Eugryllacris tiga sp. nov. is described from China. The male morphology and ecology of E. cf. vaginalis Pictet Saussure, 1893 and E. guomashan Ingrisch, 2018 are illustrated for the first time. The type species are deposited in Museum of Biology, East China Normal University (ECNU).