E. J. O. Hartert, 1902,
Mt Tahan, northern Pahang, Malaysia.
Hitherto treated as conspecific with P. nipalensis, but differs in its white vs brown-grey cheeks (3); pale grey and unmarked vs pale-scaled dark brown crown with blackish frons (2); slightly shorter bill, wing and tail (at least 1); seemingly distinctive call (in only known recording), a repeated rather emphatic fast double note “pi-piu”, not reported from other taxa (at least 1). Monotypic.
Mountains of Peninsular Malaysia (Selangor E to Pahang).