White Lipped Tree Frog, Litoria infrafrenata

The White-Lipped Tree Frog (Litoria infrafrenata), known also as the Giant Tree Frog, is the world’s largest tree frog. This species is endemic to the rainforests of Northern Queensland, New Guinea, the Bismarck Islands, and the Admiralty Islands.

The White-lipped Tree Frog reaches a length of over 5.1 inches. The females are larger than the males as they usually only reach 3.9 inches. Its dorsal surface is normally bright green, although the color changes depending on the background and the temperature, and can be brown. The ventral surface is an off-white color. The lower lip has a distinctive white stripe, which continues to the shoulder. The white stripes on the trailing edges of the lower leg may turn pink within the breeding male. The white-lipped tree frog has large toe pads, which help it in climbing. The toes are fully webbed, and the hands are just partially webbed.

This frog is distributed in Australia along the coastal areas of Cape York Peninsula and the wet tropics of north-eastern Queensland. It is the most widely distributed tree frog within the New Guinea region, spanning from eastern Indonesia, through the New Guinea mainland, to the Bismarck and the Admiralty Islands in the north. It resides in rainforests, cultivated areas, and around houses in coastal areas, and is restricted to areas below 1200 meters in altitude.

It emits a loud, barking call, but when distressed, it makes a cat-like “mew” sound. The males call during the spring and the summer after rain from vegetation around the breeding site, normally a still body of water.

Its diet is mainly made up of insects and other arthropods. It can live to over ten years in the wild.

This species of frog is known for being moved around in fruit produce from northern Australia and ending up becoming a lost frog in the southern areas.

Image Caption: White-lipped Tree Frog (Litoria infrafrenata), Julatten, Queensland, Australia. Credit: JJ Harrison/Wikipedia (CC BY-SA 3.0)