“…Comparing to the Segura river (Sánchez et al, 2018) with just 1 species found or the Amadorio river (López-Peña and Jiménez-Peydró, 2020) with 2 species, 3 species have been found in the Jarama and Tajo rivers (Soriano et al, 2019), 4 in the Ebro river (Ruiz-Arrondo et al, 2017) (Puig et al, 1984), Monegre (López-Peña and Jiménez-Peydró, 2020) rivers and Molinos stream (Ricoy-Llavero, 2015), 8 species in the Guadalhorce, Guadiaro (González et al, 1987), Lozoya (Casado et al, 1990), Anllóns, Eo, Lérez, Mandeo, Masma, Mera, Ouro, Pereira, Sar, Ulla and Umia (Lestón et al, 2014), Manzanares (Soriano et al, 2019) and Algar (López-Peña and Jiménez-Peydró, 2020) rivers and Orcera stream (Ricoy-Llavero, 2015), 9 in the Besós, Foix (González, 1985) and Cidacos (Ruiz and Rubio, 1999) rivers, while 10 species (S. angustipes, S. argyreatum, S. equinum, S. erythrocephalum, S. intermedium, S. lineatum, S. ornatum, S. petricolum, S. trifasciatum and S. velutinum) were identified in the present study in the Tormes river. This shows this is one of the most diverse rivers, after the Serpis river with 14 species (López-Peña and Jiménez-Peydró, 2020), Mijares (López-Peña and Jiménez-Peydró, 2018), Yeguas (González et al, 1986) and Ter (Puig et al, 1987) rivers with 13 species in each.…”