The Meratus Blue-flycatcher was described from the Meratus Mountains of southeast Borneo. The female has olive upperparts and a white belly; the study also recorded the species in montane forest and at lower sites in secondary woodland.
The female has olive upperparts and a white belly. The paper describes male and female plumage separately.
The paper records the species in montane rainforest in the Meratus Mountains and, at a lower site, in settings including rubber plantation, secondary forest, and woodland. These are surveyed habitats, not a measure of preference.
An extinction-risk assessment has not been added yet.