Chaetophractus villosus


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Chaetophractus villosus
Species Authority: (Desmarest, 1804)
Common Name/s:
English Large Hairy Armadillo
Spanish Peludo

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2010
Date Assessed: 2009-12-09
Assessor/s: Abba, A.M. Superina, M.
Reviewer/s: Bolkovic, M.L. & Poljak, S.
Chaetophractus villosus is listed as Least Concern in view of its wide distribution, presumed large population, its presence in a number of protected areas, its tolerance of a degree of habitat modification, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.
2006 Least Concern (IUCN 2006)
2006 Least Concern

Geographic Range [top]

Range Description: C. villosus is present in the Gran Chaco of Bolivia, Paraguay, and Argentina as far south as Santa Cruz, Argentina and Magallanes, Chile (Gardner 2005). It has been introduced in Tierra del Fuego Province, Argentina (Poljak et al. 2007,  Poljak et al. 2010). It ranges from sea level up to 1,500 m asl (Argentina).
Argentina; Bolivia, Plurinational States of; Chile; Paraguay
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: This is one of the most common armadillo species in Argentina (Abba 2008).
Population Trend: Increasing

Habitat and Ecology [top]

Habitat and Ecology: C. villosus is present in a wide variety of habitats, among them grasslands (including pampas and chaco), savanna, and forest. It is also found in cultivated landscapes (Abba et al. 2005, Abba et al. 2007, Abba 2008).
Systems: Terrestrial

Threats [top]

Major Threat(s): In some parts of its range, C. villosus is locally used for food and charangos (musical instruments; Aguiar and Fonseca 2008). It is also persecuted as a pest species in agricultural areas, and is subject to sport hunting. Animals may also be killed on roads and by dogs (Abba et al. 2007, Abba 2008).

Conservation Actions [top]

Conservation Actions: This species is present in many protected areas.

Bibliography [top]

Abba A. M. 2008. Ecología y Conservación de los armadillos (Mammalia, Dasypodidae) en el noreste de la provincia de Buenos Aires, Argentina. División Zoología Vertebrados, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata.

Abba A.M., D. E. Udrizar Sauthier and S.F. Vizcaíno. 2005. Distribution and use of burrows and tunnels of Chaetophractus villosus (Mammalia, Xenarthra) in the eastern Argentinean pampas. Acta Theriologica 50(1): 115-124.

Abba A. M., M. H Cassini and S. F. Vizcaíno. 2007. Effects of land use on the distribution of three species of armadillos (Mammalia, Dasypodidae) in the pampas, Argentina. Journal of Mammalogy 88(2): 502-507.

Aguiar, J. M. and da Fonseca, G. A. B. 2008. Conservation status of the Xenarthra. In: S. F. Vizcaino and W. J. Loughry (eds), The Biology of the Xenarthra, pp. 215-231. University Press of Florida, Gainesville, Florida.

Baillie, J. and Groombridge, B. (comps and eds). 1996. 1996 IUCN Red List of Threatened Animals. IUCN, Gland, Switzerland and Cambridge, UK.

Ergueta, S. P. and Morales, C. (eds). 1996. Libro rojo de los vertebrados de Bolivia. Centro de Datos para la Conservación, La Paz, Bolivia.

Gardner, A. L. 1993. Order Xenarthra. In: D. E. Wilson and D. M. Reeder (eds), Mammal Species of the World: A taxonomic and geographic reference. Second Edition, pp. 63-68. Smithsonian Institution Press, Washington, DC, USA.

Gardner, A. L. 2005. Order Cingulata. In: D. E. Wilson and D. M. Reeder (eds), Mammal Species of the World: A taxonomic and geographic reference. Third edition., pp. 94-99. The Johns Hopkins University Press, Baltimore, Maryland, USA.

Gardner, A.L. 2005. Order Cingulata. In: D.E. Wilson & D.M. Reeder (eds) Mammal Species of the World: A taxonomic and geographic reference. Third Edition. pp: 94–99. The Johns Hopkins University Press, Baltimore.

IUCN. 2010. IUCN Red List of Threatened Species (ver. 2010.4). Available at: (Accessed: 27 October 2010).

Poljak, S., Confalonieri, V., Fasanella, M., Gabrielli, M., Lizarralde M. 2010. Phylogeography of the armadillo Chaetophractus villosus (Dasypodidae Xenarthra):Post-glacial range expansion from Pampas to Patagonia (Argentina). Molecular Phylogenetics and Evolution (in press).

Poljak, S., Escobar, J., Deferrari, G. and Lizarralde, M. 2007. A new introduced mammal in Tierra del Fuego: the "large hairy armadillo" Chaetophractus villosus (Mammalia, Dasypodidae) in the Isla Grande island. Revista Chilena de Historia Natural 80(3): 285-294.

Tarifa, T. and Romero-Muñoz, A. 2009. Chaetophractus villosus. In: Aguirre, L.F., Aguayo, R., Balderrama, J.A., Cortez, C., Tarifa, T., and Rocha O., O. (eds), Libro rojo de la fauna silvestre de vertebrados de Bolivia, pp. 135-137. Ministerio de Medio Ambiente y Agua, La Paz.

Citation: Abba, A.M. Superina, M. 2010. Chaetophractus villosus. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <>. Downloaded on 19 April 2014.
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