Mapuche language
"Willinakaqe" was first named by Rubén D. Juárez Valieri, José A. Haro, Lucas E. Fiorelli and Jorge O. Calvo in 2010 and the type species is "Willinakaqe salitralensis". The generic name means "Southern duck-mimic", in the Mapuche language ("willi", "south", "iná", "mimic" and , "duck"). The specific name refers to the Salitral.