In fact, it is a synonym of Porpomastix fasciolata Enderlein 1942. As the matter of fact, 99% of the species names used recently by Kim & Han (1999, 2000) have been synonymized based on studies of poorly described Enderlein's and Walker's types.
Refs. Korneyev V. A. 2004. Genera of Palaearctic Pyrgotidae (Diptera, Acalyptrata), with Nomenclatural Notes and a Key. - Vestnik zoologii, 38(1): 19?46. Nartshuk E.P. & V. A.Korneyev. 2005. Data on the Fauna of Pyrgotidae (Diptera,
Cyclorrhapha) of the Russian Far East. - Far Eastern Entomologist, 147: 1-10. Korneyev V. A. 2007. Identity of Tephritopyrgota ferruginea and Adapsilia longicauda (Diptera, Pyrgotidae). - Vestnik zoologii, 41(1): 70.