Fulvous-throated Antren is a typical member of Epinecrophylla: it is a dead leaf specialist, meaning that it forages by searching for insects in curled dead leaves that are trapped in foliage in the understory of humid lowland forest, and often draws attention by virtue of its acrobatic foraging behavior. This antwren typically accompanies mixed species flocks, and is fairly common. Fulvous-throated Antwren is a member of the Epinecrophylla haematonota complex, all of which formerly were included in a single broad species, "Stipple-throated Antwren". Fulvous-throated Antwren occurs in northwestern Amazonia, from southern Colombia and northeastern Peru east to southern Venezuela and northwestern Brazil. Its distribution is bordered to the west by that of Brown-backed Antwren (Epinecrophylla fjeldsaai); these species may be narrowly allopatric (separated by the Napo River), but also can be distinguished by the color of the back in males (rufous in Fulvous-throated, brown in Brown-backed). To the southwest and the south, Fulvous-throated is replaced by Rufous-backed Antwren (Epinecrophylla haematonota). These two species are very similar in appearance, but again, probably are narrowly allopatric, with distributions separated by major rivers such as the Napo and Amazon..