A new genus ( Borinken ) and five new species ( Borinken elyunque , Distigmoptera chamorrae , Kiskeya elyunque , Ulrica eltoro , and Ulrica iviei ) from Puerto Rico are described and illustrated. A keyto all West Indian Monoplatini genera is provided, as are keys to all speciesof Kiskeya and to the speciesof Ulrica from Puerto Rico. A list of the flea beetle genera, along with the number of species and some of the faunal features is presented and discussed for the West Indies.