Remsen, J.V.J., Stiles, F.G. and Mcguire, J.A. 2015. Classification of the Polytminae (Aves: Trochilidae). Zootaxa. 3957, 1 (May 2015), 143–150. DOI:https://doi.org/10.11646/zootaxa.3957.1.13.