Several new species of Plecoptera (Leuctra hexacanthoides, L. berthelemyi, L. thomasi, Protonemura culmenis, P. canigolensis) collected in the Pyrenees of France, Andorra, and Spain are described and illustrated. Protonemura brevistyla (Ris) and P. montana Kimmins are recorded from the Pyrenees for the first time.