Corbicula largillierti (Philippi 1844), an invasive freshwater bivalve, accidentally reached Argentina from Asia presumably in the 1960s. Since then, records of its presence from the Rio de la Plata River to the northeast and northwest Argentinian freshwater systems have been documented. A new record in Del Valle River, part of the Del Valle Central basin in Catamarca Province of northwest Argentina, makes evident that the species is still spreading through Argentina.