Such's Antthrush is endemic to the costal mountain ranges of southeastern Brazil (Krabbe and Schulenberg 2003) from southern Bahia (Gonzaga et al. 1995) and eastern Minas Gerais (Simon et al. 1999, de Vasconcelos and Junior 2001), southward through western Espírito Santo (Venturini et al. 2001, Simon et al. 2008), western Rio de Janeiro (Mallet-Rodrigues et al. 2007), eastern São Paulo (Willis and Schuchmann 1993, Aleixo and Galetti 1997, Aleixo 1999), eastern Paraná (Urben-Filho and Abe 2001, Urben-Filho et al. 2001), and northeastern Catarina.