Dendropsophus triangulum (Günther, 1869)

Class: Amphibia > Order: Anura > Family: Hylidae > Subfamily: Hylinae > Genus: Dendropsophus > Species: Dendropsophus triangulum

Hyla triangulum Günther, 1869 "1868", Proc. Zool. Soc. London, 1868: 489. Holotype: BMNH 1947.2.23.88 (formerly 1868.11.15.2) according to Condit, 1964, J. Ohio Herpetol. Soc., 4: 95. Type locality: "Brazil"; considered to be of unknown provenance by Boulenger, 1882, Cat. Batr. Sal. Coll. Brit. Mus., Ed. 2: 388.

Hyla leucophyllata triangulumCope, 1870 "1869", Proc. Am. Philos. Soc., 11: 155.

Dendropsophus triangulumFaivovich, Haddad, Garcia, Frost, Campbell, and Wheeler, 2005, Bull. Am. Mus. Nat. Hist., 294: 91.

Hyla favosa Cope, 1885, Proc. Am. Philos. Soc., 23: 95. Holotype: ANSP 11483, according to Malnate, 1971, Proc. Acad. Nat. Sci. Philadelphia, 123: 350. Type locality: "Pebas, Upper Amazon" Department of Loreto, Peru. Synonymy with Hyla leucophyllata by Titus, Hillis, and Duellman, 1989, Herpetologica, 45: 17-23; with Dendropsophus triangulum by Caminer, Milá, Jansen, Fouquet, Venegas, Chávez, Lougheed, and Ron, 2017, PLoS One, 12(3: e0171785): 18.

Common Names

Triangle Treefrog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 58).

Distribution

Amazon basin of Ecuador (Orellana and Sucumbíos provinces), Peru (regions of Loreto and Cusco) and Brazil (states of Acre, Amazonas and Pará), 34 to 387 m elevation. See comment regarding cryptic associates in Colombia and Brazil.  

Geographic Occurrence

Natural Resident: Brazil, Ecuador, Peru

Likely/Controversially Present: Colombia

Comment

See Duellman, 1974, Occas. Pap. Mus. Nat. Hist. Univ. Kansas, 27: 19. Duellman, 1978, Misc. Publ. Mus. Nat. Hist. Univ. Kansas, 65: 142–143, 167–168, provided brief accounts (as Hyla favosa and Hyla triangulum) including characterization of call and tadpole. Many color morphs of this species have been recognized taxonomically (Duellman, 1985, in Frost (ed.), Amph. Species World: 155). Considered by Cope, 1870 "1869", Proc. Am. Philos. Soc., 11: 156, and Boulenger, 1882, Cat. Batr. Sal. Coll. Brit. Mus., Ed. 2: 387, to be a junior synonym of Hyla leucophyllata. See comments by Heyer, 1977, Pap. Avulsos Zool., São Paulo, 31: 144. Rodríguez and Duellman, 1994, Univ. Kansas Mus. Nat. Hist. Spec. Publ., 22: 38, provided a brief account for the Iquitos region of northeastern Peru as Hyla triangulum. In the Dendropsophus leucophyllatus group of Faivovich, Haddad, Garcia, Frost, Campbell, and Wheeler, 2005, Bull. Am. Mus. Nat. Hist., 294: 91 Duellman, 2005, Cusco Amazonico: 215–218, provided (as Hyla leucophyllata) an account (adult and larval morphology, description of the call, life history). França and Venâncio, 2010, Biotemas, 23: 71–84, provided a record for the municipality of Boca do Acre, Amazonas, with a brief discussion of the range. Bernarde, Machado, and Turci, 2011, Biota Neotrop., 11: 117–144, reported specimens from Reserva Extrativista Riozinho da Liberdade, Acre, Brazil. Lynch and Suárez-Mayorga, 2011, Caldasia, 33: 235–270, illustrated the tadpole and included the species in a key to the tadpoles of Amazonian Colombia. Caminer, Milá, Jansen, Fouquet, Venegas, Chávez, Lougheed, and Ron, 2017, PLoS One, 12(3: e0171785): 1–42, revised the group, provided a detailed account, phylogenetic placement, and redelimited the species, noting that, based on acoustic data and molecular markers, pre-revision Dendropsophus triangulum is a complex of nine candidate species, several of which remain unnamed. Zimmerman, 1983, Herpetologica, 39: 235–246, reported on advertisement call, as Hyla triangulum. See brief account for the Manu region, Peru, by Villacampa-Ortega, Serrano-Rojas, and Whitworth, 2017, Amph. Manu Learning Cent.: 152–153. Metcalf, Marsh, Torres Pacaya, Graham, and Gunnels, 2020, Herpetol. Notes, 13: 753–767, reported the species from the Santa Cruz Forest Reserve, Loreto, northeastern Peru. In the Dendropsophus leucophyllatus group of Orrico, Grant, Faivovich, Rivera-Correa, Rada, Lyra, Cassini, Valdujo, Schargel, Machado, Wheeler, Barrio-Amorós, Loebmann, Moravec, Zina, Solé, Sturaro, Peloso, Suárez, and Haddad, 2021, Cladistics, 37: 73–105. Crnobrna, Santa-Cruz Farfan, Gallegos, López-Rojas, Llanqui, Panduro Pisco, and Kelsen Arbaiza, 2023, Check List, 19: 444, provided a record from Ucayali Department, central-eastern Peru.   

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