Thamnodynastes chaquensis Bergna and Alvarez, 1993

Type locality. Colonia la Mercedes, San Fernando, province of Buenos Aires, Argentina .

Distribution. Known from Argentina, Bolivia, Brazil, and Paraguay (Plt. 353A). In Brazil, widespread in the Pantanal, with marginal records in the western portion of the Cerrado (Plt. 353A), mostly at low elevations (Plt. 353B). Observed in the field in dry forest, wetland, and wet savanna (Bellini et al., 2014).