Roth's tree frog is a medium-sized frog, reaching a maximum length of 5.7 cm (2.2 in).
The body is elongated, with a small head and large eyes.
It is an arboreal frog, and its toe pads are wider than its fingers.
The dorsal surface is a dull grey to brown colour, and can be blotched with dark brown.
The inner thighs and armpits are black and blotched with bright yellow or orange.
The tympanum is visible, with a fold of skin covering the top portion.

There are two features which distinguish it from both Perons' tree frog and Tyler's tree frog - the upper half of the iris is deep red, and it has no emerald green flecks on the dorsal surface.
Roth's tree frog is a medium-sized frog, reaching a maximum length of 5.7 cm (2.2 in). The body is elongated, with a small head and large eyes. It is an arboreal frog, and its toe pads are wider than its fingers. The dorsal surface is a dull grey to brown colour, and can be blotched with dark brown. The inner thighs and armpits are black and blotched with bright yellow or orange. The tympanum is visible, with a fold of skin covering the top portion.
There are two features which distinguish it from both Perons' tree frog and Tyler's tree frog - the upper half of the iris is deep red, and it has no emerald green flecks on the dorsal surface.
Roth's tree frog