New species of the genera Mezentia Stål, Taeniophora Stål, Nautia Stål, Caenolampis Descamps and Inbiolampis n. gen. (all members of the Bactrophorinae Amedegnato 1974) are described from Costa Rica and Panama. The previously unknown male of Taeniophora rubrosignata Descamps & Rowell 1984 is described; its cereal structure links it to South American species of the genus, rather than to the other Central American species. A key to the Central American species of Mezentia is provided. New species: Mezentia prymnocerca, M. proracerca, Taeniophora pirrensis, T. santosi, Caenolampis copensis, Inbiolampis herediensis.