The range of the Streak-throated Hermit is divided in two, with the race rupurumii inhabiting eastern Colombia, Venezuela and Guyana and the race amazonicus inhabiting north-central Brazil along the Amazon River. A small brownish hermit, the Streak-throated Hermit has white or buffy undertail coverts and a brownish gray belly, with males having dark brown throat feathers creating a streaked appearance. Like most species of hermit, the Streak-throated Hermit is an understory species. These birds prefer rainforest edge, várzea forest, gallery forest and scrub and second growth. This species is poorly known, but is frequently recorded and at the least locally common across its range.