W. Deppe, 1830,
Jalapa, Veracruz, Mexico.
The B. culicivorus species group is sister to both B. trifasciatus and B. tristriatus#R. Closely related to B. hypoleucus, and it has recently been suggested that the latter is either an incipient species or reflects a polymorphism within present species#R; nevertheless, other genetic data indicate a period of separation equal to or longer than several well-recognized species of Basileuterus and Myiothlypis#R; has hybridized with B. hypoleucus. Hitherto treated as conspecific with B. cabanisi and B. auricapilla. Birds from Oaxaca (S Mexico) sometimes separated as race ridgwayi. Name brasierii has often been emended to brasherii#R, to match name of dedicatee, Philip Brasher; but original description includes only spellings Brasier and Brazier, and current spelling must stand. Four subspecies recognized.
Food and feeding
Status and conservation
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