Alloselandria Malaise is a small sawfly genus including only one species till present. It distributes in North India, Burma and Yunnan Province of China. In this paper the genus is revised with description of a new species from China: Alloselandria zhengi, sp. nov. The male of the type species of the genus, Alloselandria indobirmana Malaise, is described for the first time. A key to the two known species of the genus is given. The diagnostic characters of Alloselandria from its relatives and distribution of the genus are also briefly discussed....