We reported the first record of the rare species Trocheta subviridis Dutrochet, 1817 (Arhynchobdellida, Erpobdellidae) from north-eastern Spain (Suspiro stream at Señorio de Bértiz Natural Park, Navarra, Spain). The species was previously recorded in Spain by Cordero del Campillo (1980) and García Más and Jiménez (1981). However, the latter authors admitted (Garcia Más & Jiménez, 1984) that both citations could be considered erroneous due to a misinterpretation by Cordero del Campillo of Blanchard (1893) (Jueg, 2008). Thus, considering the limited and uncertain information about T. subviridis in Spain, we can argue that our specimen is the first valid record reported for the species in the Iberian Peninsula.