The Ash-throated Gnateater feeds on small arthropods in humid lowland forest. The described male has brown upperparts and white tufts behind the eyes.
It is about 11–12 cm long. The male described in the source has a brown crown and back, grey sides to the head, and white post-ocular tufts.
It lives inside humid lowland forest and is also seen around small clearings. It feeds on small arthropods in leaf litter or on low leaves.
An extinction-risk assessment has not been added yet.