Phyllobates espinosai Funkhouser, 1956, Zoologica, New York, 41: 76. Holotype: CAS-SU 10577, by original designation. Type locality: "Hacienda Espinosa, elevation about 1,000 ft., 9 km. west of Santo Domingo de los Colorados, Province of Pichincha, northwestern Ecuador".
Dendrobates espinosai — Myers, Daly, and Malkin, 1978, Bull. Am. Mus. Nat. Hist., 161: 332.
Epipedobates espinosai — Myers, 1987, Pap. Avulsos Zool., Săo Paulo, 36: 303.
Ameerega espinosai — Frost, Grant, Faivovich, Bain, Haas, Haddad, de Sá, Channing, Wilkinson, Donnellan, Raxworthy, Campbell, Blotto, Moler, Drewes, Nussbaum, Lynch, Green, and Wheeler, 2006, Bull. Am. Mus. Nat. Hist., 297: 130. by implication.
Espinosa Poison Frog (Walls, 1994, Jewels of the Rainforest: 25; Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 50).
Turquoise-bellied Poison-arrow Frog (Ananjeva, Borkin, Darevsky, and Orlov, 1988, Dict. Amph. Rept. Five Languages: 49).
Turquoise-bellied Poison Frog (CITES).
Wet Chocoan region of the Andes in northwestern Ecuador.
Lötters, Jungfer, Henkel, and Schmidt, 2007, Poison Frogs: 409, provided an account and suggested that possibility that this taxon is a junior synonym of Epipedobates boulengeri.
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