The name Leucolia proposed for a clade of emerald hummingbirds (Stiles et al. 2017) was found to be preoccupied, and a new name Ramosomyia was thus proposed (Bruce and Stiles 2021). Violet-crowned Hummingbird Leucolia violiceps thus becomes Ramosomyia violiceps and Green-fronted Hummingbird Leucolia viridifrons becomes Ramosomyia viridifrons, aligning with Chesser et al. (2022) and Gill et al. (2022, IOC v.12.2).