“…The Paraje Tres Cerros (PTC), Corrientes Province, Argentina, is characterized by the presence of isolated rocky outcrops surrounded by a plain matrix of grasslands and wetlands. Several studies have pointed out their importance for the biodiversity conservation, highlighting the presence of species with different biogeographic affinities and some endemisms (Meregalli, 1998;Ravenna, 2003;Ravenna, 2009;Cajade et al, 2013a;Cajade, Etchepare, Falcione, Barrasso, & Álvarez, 2013b;Gervazoni, 2017;Fandiño, Fernandez, Thoman, Cajade, & Hernando, 2017;Ojanguren-Afilastro et al, 2017;Nadal, Achitte-Schmutzler, Zanone, Gonzalez, & Avalos, 2018). Previous contributions to the knowledge of the bat fauna of PTC include the first record of Eumops bonariensis for Corrientes Province and the mention of an unidentified species of Myotis that roosts under rocks (Idoeta, Cajade, Piñeiro, Acosta, & Pautasso, 2015;Cajade et al, 2013a).…”