Orange-belly Tree Frog

Adult males in the type series measure 47–53 mm (1.9–2.1 in) in snout–vent length. In a population in Taitung County, adult males measured 51–63 mm (2.0–2.5 in) and adult females 63–71 mm (2.5–2.8 in) in snout–vent length; mean male and female body mass were 8 and 15 grams, respectively. The snout is short and roundish. The tympanum is nearly circular; supratympanic fold is present. The fingers and the toes are webbed and bear discs, the former larger than the latter. Skin is smooth. The dorsum is dark green; pale yellowish spots may be present. The lips are white. The venter is orange-red. The iris is plain yellow; the pupil is vertical. The male advertisement call sounds like a low-pitched "gree", lasting about 0.4 seconds.

This frog lives in forests. It breeds in holes in tree trunks and in buckets, but these microhabitats only exist in primary forest. This frog's range does include some protected parks in it: Fu-shan Nature Reserve and Li-chia Wildlife Refuge. This frog has been observed between 0 and 1000 meters above sea level.