The wedge-tailed jery is a small, slender warbler-like bird between 12–13 cm long and weighing around 10 g. The plumage is bright yellow before and olive on the crown, wing and back.

In the rainforest they forage in the low understory, gleaning insects from the undersides of leaves and branches, often hanging upside down to do so.

They are also accomplished at extracting insects from clumps of leaves and spider web at the ends of branches.

Wedge-tailed jeries inhabit dense stands of rainforest in the east of Madagascar.

They are most commonly found in the mid-altitude rainforests between 500–1400 m, and are rarer at lower altitudes and absent above 2300 m. The wedge-tailed jery is currently listed as near-threatened by the IUCN.