The white-lipped tree frog (Nyctimystes infrafrenatus) is a species of tree frog in the subfamily Pelodryadinae of the family Hylidae. It is found in eastern Indonesia, Papua New Guinea, Timor-Leste, parts of Solomon Islands, and in the wet tropics of north-eastern Queensland, Australia, and lives in rainforests, cultivated areas, and around houses in coastal areas. A large species, the white-lipped tree frog has a typical length of 11 to 14 cm (4.3 to 5.5 in) and a mass of 30 to 60 g (1.1 to 2.1 oz). Its dorsal surface is usually bright green, although the colour changes depending on the temperature and background, and can be brown, while its lower lip has an eponymous distinctive white stripe. This white-lipped tree frog was photographed in the Daintree Rainforest, Queensland.