This species occurs in various habitats including grasslands and forests, as well as cultivated land (Sato 1934). It breeds in a variety of water bodies including paddy fields, ponds, pools, brooks and streams where it breeds and larvae develop. Eggs are laid individually and folded in and between leaves, and are laid in the shallow water (Sato 1934, Sparreboom 2014).

This species is widespread throughout Honshu, Shikoku, Kyushu and other small islands (Sado, Awaji, Iki, the Goto, Koshikijima and Yakushima Islands) in Japan (Tominaga et al. 2013). It occurs from 30-2,020 m asl.

Conservation Actions In-Place
Its range includes several protected areas. It is known to breed in captivity in zoos in Australia. The species has been designated as Near Threatened in the Japanese Red List.

Conservation Needed
Mass collections of wild individuals needs to be prohibited immediately.

Research Needed
High genetic and morphological variation has been reported in this species, and the species includes several distinct lineages that warrant species status. Actual habitat segregation and hybridization should be quickly studied before local extinction.