Phylolestes is a monotypic genus of damselflies in the family Synlestidae.

It contains the single species Phylolestes ethelae, the Hispaniolan malachite.

[1] It is the only member of its family native to the Americas; all other species are found in Africa, Asia, and Australia.

It is endemic to the Caribbean island of Hispaniola, where it occurs in both the Dominican Republic and Haiti. It inhabits streamsides in forested mountain habitat around 2000 meters in elevation.

It is threatened by the destruction of its habitat, and is considered Endangered.