Monotypic species endemic to the floodplain of the Mekong, Tonle Sap and Bassac rivers of Cambodia.
Newly described in June 2013. Ref:
Mahood, S. P., John, A. J. I., Eames, J. C., Oliveros, C. H., Moyle, R. G., Hong Chamnan, Poole, C. M.
Nielsen, H. & Sheldon, F. H.
(2013) A new species of lowland tailorbird (Passeriformes: Cisticolidae: Orthotomus) from the Mekong floodplain of Cambodia Forktail 29: 1-14