Three new species of Miridae are described, Lygus rubrostriatus and Stirophylus plicatus from southern Spain and Plagiotylus ellisorum from Rhodes. A description of the hitherto unknown sex of Hyoidellus laticeps (Ed. Wagner, 1958) and Orthonotus longiceps (Reuter, 1883) is added. The systematic position of these species is discussed.