The type specimen was collected at Muusi, at an altitude of 2,430m, in the Itombwe Mountains in the eastern Democratic Republic of Congo in 1951. It was then unconfirmed until a second individual was captured in a mist net in 1996 in the south east corner of the Itombwe Mountains, some 95 km south of, and 600m, lower than the collection site of the type specimen. In addition there was the recording in Rwanda mentioned above and a possible sighting in Burundi in 1974.