An elegant slim frog with a body length of 3 – 4 cm (up to 5 cm). The skin is very smooth. Green with an uninterrupted dorsolateral black line bordered with white from the nose down on both sides.The belly is whitish.

Most of the year they live on dry land. During daytime they often doze on the stems and broad leaves of trees, bushes and large herbaceous vegetation in full sunlight (contrary to other frogs they loose relatively little water due to special skin secretion). In the evening and at night they search on land for insects, spiders and snails. Its ability for long leaps makes it possible to forage on fast flying insects. The males gather from April to July in water bodies for nightly choirs, which can be heard from up to 1 km. The females visit the water bodies only for one night.