About Hyla intermedia Boulenger, 1882
The Italian tree frog (Hyla intermedia Boulenger, 1882) is very similar in colouring to the European tree frog; it was previously considered to be a subspecies of the European tree frog. This species reaches a length of 4 to 5 centimetres (1.6 to 2.0 in), and females are usually larger than males. The skin on its dorsal surface is smooth and bright green. Its ventral surface is whitish, and is clearly separated from the dorsal surface by a beige line. A black stripe runs from the eye to the armpit. Females have a white throat, while males have a golden brown throat with an inflatable vocal sac. Its hind legs are longer than its forelegs, and the digits on its hands and feet end in adhesive discs. The Italian tree frog is native to continental Italy and Sicily. It is very rare in southern Switzerland, and also occurs in a small area of western Slovenia close to the Italian border. It can be found in lowland woods, forests, mountain valleys, and wet habitats such as reed beds, at altitudes up to 1,855 metres (6,086 ft).