The mourning sierra finch (Rhopospina fruticeti ) is a species of South American bird in the tanager family Thraupidae. It is the only member of the genus Rhopospina.
It is found in Argentina, Bolivia, Chile and Peru. It is a vagrant to the Falkland Islands and Brazil. Its natural habitats are subtropical or tropical dry shrubland and subtropical or tropical high-altitude shrubland.
