Antioquia Bristle-Tyrant was described as a species only as recently as 1988, although it first was collected in the late 1940s by Melbourne Carriker. Apart from its rarity, this is a typical member of the genus Phylloscartes. The species currently is categorized as Endangered by BirdLife International, in recognition of its small and heavily fragmented range, which continues to suffer ongoing deforestation. Antioquia Bristle-Tyrant is a Colombian endemic and occurs locally on the eastern and north slopes of the Central Andes, and on the west slope of the East Andes, where it inhabits semi-deciduous foothill forest, as well as tall second growth, and lightly to heavily disturbed remnant forests. Other than that it joins mixed-species flocks on a regular basis, very little has been published concerning the behavior of this species. The scientific name of Antioquia Bristle-Tyrant honors the American ornithologist Wesley Lanyon, who has published extensively on the systematics of the Tyrannidae.