The genus Allogalumna Grandjean, 1936 is reported for the first time from China, and a new species Allogalumna rugata n. sp. is described from Qinghai Province. This species is distinguishable from other species of the genus by the combination of the following character states: bothridial setae setiform, slightly barbed at the end, four pairs of oval notogastral porose areas present; surface of genital and anal plates with dense thin wrinkle; postanal porose area absent.