Hyloxalus fascianigrus

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Hyloxalus fascianigrus is a small frog from the poison-dart frog family that lives only in Colombia. It is listed as Vulnerable by the IUCN.

Habitat and range
- It lives on the forest floor in leaf litter near streams in primary and secondary cloud forests, never in non-forest habitats.
- It is found at elevations of about 1,470 to 1,960 meters above sea level.
- Its range includes protected areas such as Munchique National Park, Los Farallones de Cali National Park, and Rio Anchicaya Forest Reserve.

Reproduction
- The female lays eggs on the ground. After they hatch, the male carries the tadpoles to water in streams or pools.

Population and threats
- About 250 to 1,000 mature individuals were estimated in 2017.
- Main threats are chytridiomycosis, a fungal disease that caused mass amphibian die-offs in the 1990s, and habitat loss from cattle ranching and agricultural development (both legal and illegal).

Synonyms
- Colostethus fascianiger
- Hyloxalus fascianiger