The Black-sided Robin occurs on New Guinea and nearby islands. It has a black head and back, with a white eyebrow and a white patch below the eye.
The crown, sides of the head, upperparts, and tail are black. A white eyebrow and patch beneath the eye stand out.
It inhabits rainforest and local secondary forest. It gleans insects mainly in the understory, sometimes up to about 15 m above the ground.
An extinction-risk assessment has not been added yet.