Range Description

This species is endemic to Madagascar where it is found in the east between the Mangoro and Onive Rivers and the Manampatrana River and Andringitra National Park. At the northern limit of its range (at the Nosivolo and the Mangoro River) there seems to be a clinal gradient between P. diadema and P. edwardsi (Andriaholinirina and Rabarivola 2004). Ranges from 600-1,600 m.