Appearance
The riparian antbird used to be considered conspecific with the blackish antbird but the two taxa were split based their different vocalization. The riparian antbird was formerly included in the genus "Cercomacra". A molecular phylogenetic study published in 2014 found that "Cercomacra", as then defined, was polyphyletic. The genus was split to create two monophyletic genera and six species including the riparian antbird were moved to the newly erected genus "Cercomacroides".References:
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