Eupherusa is a genus of hummingbirds in the family Trochilidae. It contains the following five species:

The Mexican woodnymph was formerly placed in the genus Thalurania with other species with "woodnymph" in their English names. A molecular phylogenetic study published in 2014 found that Thalurania was non-monophyletic and that the Mexican woodnymph is closely related to species in Eupherusa. Based on this result the Mexican woodnymph is now placed in Eupherusa.

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