The Opalton Grasswren is a grasswren studied around Opalton in central western Queensland. Survey sites include open woodland with spinifex ground cover.
It has a small, slender build, long legs and a long tail. The upperparts are rufous-brown, with bold black, white and chestnut streaks; the throat is white and the underparts are pale.
At Opalton it has been recorded in open woodland with spinifex ground cover. It forages on the ground for insects, seeds and small invertebrates, and nests in dense spinifex.
An extinction-risk assessment has not been added yet.