Angustopila elevata (Thompson et Upatham, 1997) was originally described from northern Thailand. It is the most widespread species within the genus Angustopila Jochum, Slapnik et Páll-Gergely, 2014, as revealed by a recent revision. The distribution of this species extends from southern Thailand through northern Laos and northern Vietnam to the Guangxi Zhuang Autonomous Region in Southern China. Based on shells recently collected in India, conspecificity was established between A. milium (Benson, 1853) and A. elevata, syn. nov. Furthermore, A. milium is reported from Nepal for the first time. Angustopila milium thus becomes the most widespread species of this genus and one of the most widely distributed land-snail species in South and Southeast Asia.
Das et al. (Mon,) studied this question.