The leaf green tree frog (Ranoidea phyllochroa) is a species of stream-dwelling frog, native to eastern Australia from the Queensland/New South Wales border south to Sydney.
This is a fairly small species of tree frog, up to about 40 mm (1.6 inches) in length. It can be light green to dark olive green to light brown to dark brown on the dorsal surface. A pale golden stripe runs from the nostril, across the eye, over the typanum, and down the side, underlined by a dark brown stripe, which also goes over the typanum, not across it. The forelimbs, groin, and thighs are dark red. The toes are three-quarters webbed and toe discs are large. The belly is white.
This species inhabits flowing streams in rainforest, woodland, and wet or dry sclerophyll forest along the coast and ranges of New South Wales. Males make an "Erk..Ek..Ek..Derk" call from stream-side vegetation during spring, summer and autumn, especially on warm nights; they are often seen in suburban creeks around Sydney and near the sea.
This key distinguishes between the physical differences of the leaf green tree frog, southern leaf green tree frog and frogs that represent species described as Pearson's green tree frog and mountain stream tree frog. All of these species are very closely related and look similar. Their taxonomy species is under review.
R. barringtonensis - mid-north coast of NSW
R. nudidigitus - south of Sydney, NSW
R. phyllochroa - from Sydney to mid-north coast of NSW
R. pearsoniana - north-east NSW and south-east Qld
R. barringtonensis - black dots present, usually very distinct and many dots (see photo)
R. nudidigitus - no black dots present
R. phyllochroa - no black dots present
R. pearsoniana - black dots usually present (not as distinct and not as many as L. barringtonensis), although some specimens have none, or very few