This species is known from central, southern and south-western China, including Taiwan and Hong Kong, eastern Myanmar, throughout Thailand, Lao People's Democratic Republic, Cambodia, Viet Nam and Peninsular Malaysia and Singapore (Bourret 1942, Taylor 1962, Berry 1975, Lim and Lim 1992, Nguyen and Ho 1996, Stuart 1999). It generally occurs in lowlands and at mid-altitudes up to about 220-1,500 m asl.
Habitat and Ecology
A species of the forest edge, occasionally encountered on the forest floor of primary forest, but most often heard in massive choruses at forest edge puddles and pools. It is also known occasionally from plantations, tall shrublands and cultivated fields. It breeds in relatively permanent still waters, such as grassy pools, marshes, ponds and paddy fields in hilly areas.
It is generally abundant in appropriate habitat in Southeast Asia. It is regarded as a rare species in Taiwan, Province of China. The distribution in China is fragmented.
Habitat destruction and degradation due to residential and agricultural development are threats to this species in China. No populations were ever found in paddy fields in Taiwan, Province of China, presumably owing to the use of pesticides and fertilizer application.
Many protected areas in the region support this species. It is a Class II protected species in Taiwan, Province of China.
Red List Status
Least Concern (LC)
Listed as Least Concern in view of its wide distribution, tolerance of a broad range of habitats, presumed large population, and because it is unlikely to be declining to qualify for listing in a more threatened category.
van Dijk, P.P., Ohler, A., Lue Kuangyang, Chou Wenhao, Geng Baorong & Bosco Chan 2009. Microhyla butleri. The IUCN Red List of Threatened Species 2009: e.T57878A11684662. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T57878A11684662.en