This species is endemic to Riviersonderend, Du Toitsberg, Elandskloof and Limietberg Mountains in Western Cape Province, South Africa. It occurs at 300-2,000 m asl. Its Extent of Occurrence is probably less than 20,000 km2.
Habitat and Ecology
It is a species of fynbos heath land that does not survive in degraded areas. It breeds in wet mossy areas near rivers, hillside or roadside seepages, and heavily vegetated streams. It lays 8-10 eggs in moss or similar vegetation, which develop directly, without a larval stage.
It is patchily distributed but widespread but in small populations in a habitat that is not significantly fragmented.
Its habitat is largely protected, although it is being impacted by the spread of alien species (in particular pines), and fires taking place too frequently. However, these threats are believed to be relatively minor.
It occurs in several protected areas.
Red List Status
Least Concern (LC)
Listed as Least Concern since, although its Extent of Occurrence is probably less than 20,000 km2, it occurs in an area of extensive, suitable habitat which appears not to be under threat and it has a presumed large population.
IUCN SSC Amphibian Specialist Group 2013. Arthroleptella bicolor. The IUCN Red List of Threatened Species 2013: e.T58057A18403488. http://dx.doi.org/10.2305/IUCN.UK.2013-2.RLTS.T58057A18403488.en .Downloaded on 21 January 2019