Recent records of the Star-throated Antwren, Rhopias gularis (Spix, 1825) (Aves, Thamnophilidae), in Rio Grande do Sul, southern Brazil

Abstract

For over 130 years, the Atlantic Forest antwren Rhopias gularis (Spix, 1825) remained known in the Brazilian state of Rio Grande do Sul from 2 undated specimens collected by Hermann von Ihering at Taquara in the early 1880s. We located 1 couple plus 2 lone females along the border with Santa Catarina in the Josafaz stream valley, municipality of Mampituba, in October 2017 and January 2018. These records confirm the present-day occurrence of R. gularis in Rio Grande do Sul and establish a new southern limit of its distribution. We briefly discuss the validity of Ihering’s record and the historical occurrence of the species at Taquara.