Colostethus insulatus Duellman, 2004, Sci. Pap. Nat. Hist. Mus. Univ. Kansas, 35: 24. Holotype: KU 211857, by original designation. Type locality: "17 km ENE (by road) of Balsas (ca. 06° 50′ S, 77° 56′ W), 1810 m, Provincia de Chachapoyas, Departamento de Amazonas, Peru".
Hyloxalus insulatus — Grant, Frost, Caldwell, Gagliardo, Haddad, Kok, Means, Noonan, Schargel, and Wheeler, 2006, Bull. Am. Mus. Nat. Hist., 299: 168.
None noted.
Middle Marañón Valley in northern Peru along streams and cascades through an otherwise arid region, 1260-2600 m elevation.
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