in Japan, and throughout South-east Asia, (China, Sumatra, Java, Bali, Borneo, India and Sri Lanka).

[2] In 2021, nine species of Microhyla were moved to Nanohyla on the basis of morphological and phylogenetic differences.

[1] Microhyla pulverata was found to be a junior synonym of Nanohyla marmorata based on phylogenetic evidence.

[3] According to Seshadri et al. (2016),[4] this genus can be diagnosed using the following set of criteria: Adult frogs are of small size; pupil circular; skin on dorsum smooth; lateral side of body with markings from back of eye to vent; supratympanic fold present in adults; paratoid glands are absent, fingers without webbing, finger tips may or may not be dilated; oval tongue, its margin is entire and free at the base; the diameter of eye is smaller than snout; a thin layer of skin hides the tympanum; tubercles on hand distinct; distinct oval shaped inner metatarsal tubercle and rounded outer metatarsal tubercle; webbing in feet, rudimentary.

[5] However, ascertaining the phylogenetic relationship of frogs within Microhyla has been difficult as many species are not monophyletic.