This species is known only from the several localities on the northern slope of Mount Simpson, at 1,400-2,500m asl in Milne Bay Province, Papua New Guinea (Kraus and Allison, 2006). It has not so far been found in neighbouring sites such as Mount Dayman and Mount Suckling. It is unlikely to be widespread, but further surveys are needed to determine whether or not it is endemic to Mount Simpson (F. Kraus, pers. comm.).
Habitat and Ecology
This species has been recorded from closed-canopy mid-elevation tropical moist forest, montane cloud forest and open montane mixed shrub-grassland (Kraus and Allison, 2006). At lower elevations (around 1,500m asl) these frogs call from the steams and leaves of shrubs, or from within Pandanus leaf axils (Kraus and Allison, 2006). At higher elevations (around 2,500m asl) they call from low grass tussocks (Kraus and Allison, 2006). The species presumably breeds by direct development, without dependence on water.
It is apparently common in its small known range.
Bushland fires might possibly pose some threat to the species if these fires are eroding the primary montane forest habitat for the species (F. Kraus, pers. comm.). On the other hand, the species also lives in grassland/shrubland areas, so such fires might not have much impact on its status (F. Kraus, pers. comm.).
It is not known from any protected areas. Additional studies are needed into the distribution, abundance, breeding biology, threats and general ecology of this species.
Fred Kraus 2008. Cophixalus timidus. In: IUCN 2014