Epipedobates bilinguis Jungfer, 1989, Salamandra, 25: 86. Holotype: ZFMK 49073, by original designation. Type locality: "Ecuador: Napo: 10 km N Puerto Francisco de Orellana (= Coca)".
Ameerega bilinguis — 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; Grant, Frost, Caldwell, Gagliardo, Haddad, Kok, Means, Noonan, Schargel, and Wheeler, 2006, Bull. Am. Mus. Nat. Hist., 299: 164.
Ecuador Poison Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 50).
Ecuadorean Poison Frog (Walls, 1994, Jewels of the Rainforest: 25).
River systems of the Río Napo and Río Aguarico in northeastern Ecuador (provinces of Napo, Orellana, and Sucumbíos) and adjacent Colombia (departments of Putumayo and Caquetá).
The species had previously been confused with Ameerega parvula (as Epipedobates) according to the original publication. See comment under Ameerega ingeri. See account by Lötters, Jungfer, Henkel, and Schmidt, 2007, Poison Frogs: 323-325, who placed this in their Ameerega picta group. Poelman, Verkade, and van Wijngaarden, 2010, J. Herpetol., 44: 409-417, reported on larval morphology.
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