The Flame-throated Warbler is a striking resident of the Chiriqui highlands of southern Costa Rica and western Panama, where it inhabits the canopy of open oak-dominated woodland and forest edges. The upperparts are slate-blue, the throat is bright red to orange, and the underparts are whitish. The bill is thin and pointed. This species feeds primarily on arboreal insects and arthropods. This species will often travel with mixed-species flocks of insectivores and frugivores.