The white-winged vampire bat (Diaemus youngi), a species of vampire bat, is the only member of the genus Diaemus. It is found from Mexico to southern Argentina and is present on the islands of Trinidad and Isla Margarita. In Trinidad, up to 30 Diaemus bats were found in a hollow immortelle tree and one was found in a well-lit cave, along with Desmodus rotundus and Saccopteryx bilineata. Flying individuals are easily identified by their white wingtips.