Atelopus ignescens (Cornalia, 1849)

Quito stubfoot toad, Jambato (harlequin) toad, Black Andean toad



Taxonomy & Nomenclature

Synonym/s: Atelopus carinatus Andersson, 1945; Phryniscus laevis Günther, 1858


Conservation Status

Last record: 1988 or 1989

Rediscovered on 21 April 2016

IUCN RedList status: Extinct





Biology & Ecology










Original scientific description:

Cornalia, E. (1849). Vertebratorum Synopsis in Musaeo Mediolanense extantium quae per novum Orbem Cajetanas Osculati collegit Annis 1846–47–1848. Speciebus novis vel minus cognitis adjectis, nec non Descriptionibus atque Iconibus illustratis, curante Aemilio Cornalia. Vertebratorum Synopsis in Musaeo Mediolanense extantium quae per novum Orbem Cajetanas Osculati collegit Annis 1846–47–1848, pp. 304-305.


Other references:

Andreone, Franco et al. (2022). Threatened and extinct amphibians and reptiles in Italian natural history collections are useful conservation tools. Acta Herpetologica 17(1): 45-58. doi:10.36253/a_h-12349

Coloma, L.A. 2002. Two species of Atelopus (Anura: Bufonidae) from Ecuador. Herpetologica 58(2).

Coloma, L.A., Lötters, S. and Salas, A.W. 2000. Taxonomy of the Atelopus ignescens complex (Anura: Bufonidae): designation of a neotype of Atelopus ignescens and recognition of Atelopus exiguus. Herpetologica 56(3): 303-324.

Duellman, W. E., and Lynch, J. D. 1969. Descriptions of Atelopus tadpoles and their relevance to atelopodid classification. Herpetologica 1969: 231-240.

Gray, P. 1983. Morphometrics of the Atelopus ignescens complex (Anura: Bufonidae). Unpubl. Master thesis, Univer. Kansas.

IUCN SSC Amphibian Specialist Group. 2018. Atelopus ignescens. The IUCN Red List of Threatened Species 2018: e.T54518A98641865. Downloaded on 06 July 2018.

Jaynes, Kyle E. et al. (2022). Harlequin frog rediscoveries provide insights into species persistence in the face of drastic amphibian declines. Biological Conservation 276: 109784.

La Marca, E., Lips, K.R., Lötters, S., Puschendorf, R., Ibáñez, R., Rueda-Almonacid, J.V., Schulte, R., Marty, C., Castro, F., Manzanilla-Puppo, J., Garcia-Perez, J.E., Toral, E., Bolaños, F., Chaves, G., Pounds, J.A. and Young, B. 2005. Catastrophic population declines and extinctions in Neotropical harlequin frogs (Bufonidae: Atelopus). Biotropica 37(2): 190-201.

Lötters, S. 1996. The Neotropical Toad Genus Atelopus. Checklist - Biology - Distribution. Vences, M. and Glaw, F. Verlags GbR, Köln, Germany.

Pounds, J.A., Bustamante, M.R., Coloma, L.A., Consuegra, J.A., Fogden, M.P.L., Foster, P.N., La Marca, E., Masters, K.L., Merino-Viteri, A., Puschendorf, R., Ron, S.R., Sánchez-Azofeifa, G.A., Still, C.J. and Young, B.E. 2006. Widespread amphibian extinctions from epidemic disease driven by global warming. Nature 439: 161-167.

Regalado, Pedro Galán. (2015). Los Anfibios y Reptiles Extinguidos: Herpetofauna Desaparecida Desde el Año 1500. Monografías de la Universidade da Coruña 155: 1-509.

Ron, S.R., W.E. Duellman, L.A. Coloma, M.R. Bustamante. (2003). Population decline of the Jambato Toad Atelopus ignescens (Anura: Bufonidae) in the Andes of Ecuador. J. Herpetol. 37(1):116-126.


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