Tyrant-flycatchers (Tyrannidae)

Sulphury Flycatcher (Tyrannopsis sulphurea) - HBW 9, p. 415

French: Tyran des palmiers German: Schwefeltyrann Spanish: Tirano Palmero

Taxonomy: Muscicapa sulphurea Spix, 1825, Manaus, Rio Negro, Brazil.
Long considered closely related to Myiozetetes on grounds of plumage. More recent evidence relating primarily to syringeal morphology, nest architecture and molecular-sequence data indicates close affinity with, instead, Megarynchus; molecular data also provide conflicting but fairly weak evidence for the two being either the sister-group to Conopias, or basal to a group including Conopias as sister to a well-supported clade containing Empidonomus, Griseotyrannus and Tyrannus, but additional sequence data necessary in order to resolve true affi.. View all taxonomy...

Taxonomy: Muscicapa sulphurea Spix, 1825, Manaus, Rio Negro, Brazil.
Long considered closely related to Myiozetetes on grounds of plumage. More recent evidence relating primarily to syringeal morphology, nest architecture and molecular-sequence data indicates close affinity with, instead, Megarynchus; molecular data also provide conflicting but fairly weak evidence for the two being either the sister-group to Conopias, or basal to a group including Conopias as sister to a well-supported clade containing Empidonomus, Griseotyrannus and Tyrannus, but additional sequence data necessary in order to resolve true affinities among these taxa. Monotypic.

Distribution: E Colombia (S from Meta and Vaupés), E & S Venezuela (SE Sucre S to Delta Amacuro, Bolívar and Amazonas), Trinidad and the Guianas S to E Ecuador (primarily R Napo and R Aguarico, but certainly more widespread), E Peru (Loreto, Ucayali, recorded also Madre de Dios), extreme NW Bolivia (Pando area), and Amazonian Brazil (E to Maranhão, S to Rondônia, S Mato Grosso, Goiás and Tocantins).