Northern New Guinea tree frog

The Northern New Guinea tree frog ("Nytimystes gramineus") is a tree frog from Papua New Guinea.
This is a canopy-dwelling frog, meaning it lives high in the branches of the trees where the leaves grow. For a while, scientists thought "Litoria dux" was a different species, but some scientists now think "Litoria dux" is part of "Litoria graminea".