Trachycephalus imitatrix (Miranda-Ribeiro, 1926)

Class: Amphibia > Order: Anura > Family: Hylidae > Subfamily: Hylinae > Genus: Trachycephalus > Species: Trachycephalus imitatrix

Hyla imitatrix Miranda-Ribeiro, 1926, Arq. Mus. Nac., Rio de Janeiro, 27: 77. Syntypes: MNRJ 154 (2 specimens), according to Miranda-Ribeiro, 1955, Arq. Mus. Nac., Rio de Janeiro, 42: 411, who considered one specimen the holotype and the other the allotype, although this was an invalid action. Type locality: "Therezopolis [= Teresópolis], Serra dos Orgãos", Rio de Janeiro, Brazil.

Phrynohyas imitatrixBokermann, 1966, Lista Anot. Local. Tipo Anf. Brasil.: 52.

Trachycephalus imitatrixFaivovich, Haddad, Garcia, Frost, Campbell, and Wheeler, 2005, Bull. Am. Mus. Nat. Hist., 294: 111.

English Names

Rio Golden-eyed Treefrog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 61).


States of São Paulo, southern Minas Gerais, and Rio de Janeiro, Brazil; reported from the Área Experimental Guaraní de la Reserva de la Universidad Nacional de Posadas, Guaraní Department, Misiones, Argentina.  

Geographic Occurrence

Natural Resident: Argentina, Brazil


Lavilla and Cei, 2001, Monogr. Mus. Reg. Sci. Nat. Torino, 28: 51, commented on the Argentine record. Brusquetti and Lavilla, 2006, Cuad. Herpetol., 20: 27, suggested that this species likely occurs in Paraguay. Kwet and Solé, 2008, Zootaxa, 1947: 54, noted that previous records from Paraguay and Argentina probably refer to Trachycephalus dibernardoi. See comment under Trachycephalus dibernardoi which was previously confused with this species. Forti, Foratto, Márquez, Pereira, and Toledo, 2018, PeerJ, 6(e4813): 1–19, characterized the advertisement call. Matavelli, Oliveira, Godoy, Ribeiro, and Bertoluci, 2018, Herpetol. Notes, 11: 353–355, provided records for Minas Gerais, Brazil, and discussed the range. Céspedez, Stetson, Arias, and Motte, 2020, Extension. Innovación Transfer. Tech., Corrientes, 6: 104–111, reported the species from the Área Experimental Guaraní de la Reserva de la Universidad Nacional de Posadas, Guaraní Department, Misiones, Argentina.  Blotto, Lyra, Cardoso, Rodrigues, Dias, Marciano, Vechio, Orrico, Brandão, Assis, Lantyer-Silva, Rutherford, Gagliardi-Urrutia, Solé, Baldo, Nunes, Cajade, Torres, Grant, Jungfer, Silva, Haddad, and Faivovich, 2021, Cladistics, 37: 36–72, suggested that the taxonomic status of this  taxon relative to Trachycephalus dibernardoi requires additional study. Subsequently, Provete, Garey, Picheli, Mello, Gonçalves, Conte, and Rossa-Feres, 2021, J. Herpetol., 55: 237–252, detailed that the advertisement calls and tadpole morphologies of this species and Trachycephalus dibernardoi differ. 

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