Genus of birds 
Formicarius is a genus of passerine birds in the family Formicariidae. These birds are all found in the tropical New World, from southern Mexico south to Central America and northern South America. All are named as "antthrushes", and are insectivorous forest birds. They are largely terrestrial, feeding mainly on the ground on ants and other insects.
Taxonomy.
The genus "Formicarius" was introduced by the Dutch naturalist Pieter Boddaert in 1783 in his catalogue of the ten volumes of hand-coloured plates that had been engraved by François-Nicolas Martinet. The plates were produced to accompany Georges-Louis Leclerc, Comte de Buffon's "Histoire Naturelle des Oiseaux". The type species was subsequently designated as the rufous-capped antthrush ("Formicarius colma") by the English zoologist George Robert Gray in 1840. The generic name "Formicarius" is Latin meaning "of the ant".
The following cladogram shows the phylogenetic relationships between the species. It is based on a large molecular phylogenetic study of the suboscines by Michael Harvey and collaborators that was published in 2020. The six species are those recognised by the International Ornithologists' Union (IOC).
References.
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