Species endemic to east Java. Formerly considered conspecific with A. rolli, A. campbelli and A. sumatrana under the name Grey-breasted Partridge Arborophila orientalis but now split following
Mees, G. F. (1996) Geographical variation in birds of Java. : i-viii, 1-119. Nuttall Ornithological Club, Cambridge, Mass., USA. Publ. No. 26.
Dickinson, Edward C., Editor (2003) The Howard and Moore Complete Checklist of the Birds of the World, 3rd edition. London: Christopher Helm.