This species formerly occurred on the volcanoes Barva, Irazú, and Turrialba, of the Cordillera Central of Costa Rica, at elevations of 1,100-2,100m asl (Savage 2002).
Habitat and Ecology
It has been recorded along streams in premontane and lower montane rainforest; with breeding taking place on land by direct development at stream margins.
Although it has been well studied and collected extensively, and was formerly abundant throughout its range, it has not been recorded despite extensive directed surveys since 1986. There have been no new records as of August, 2007. A serious decline appears to have taken place and there is now considered to be no doubt that the species is extinct (F. Bolaños and G. Chaves pers. comm.).
The most likely cause of its disappearance in suitable habitats is the disease chytridiomycosis, perhaps in combination with climate change or other, unknown, factors.
The species was well protected in Parque Nacional Braulio Carrillo. It was formerly suggested that any surviving individuals might need to form the basis for the establishment of a captive-breeding programme.
Red List Status
Listed as Extinct because it has not been recorded since 1986, and extensive directed searches over many years at the appropriate times in the historical range have failed to locate this species.
This species was previously included in the genus Eleutherodactylus (Crawford and Smith 2005).
Bolaños, F. & Chaves, G. 2004. Craugastor escoces. The IUCN Red List of Threatened Species 2004: e.T56588A11488977. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T56588A11488977.en .Downloaded on 22 November 2018