This species is known only from near Boquerón at the base of Cerro Ingles, near Vereda La Amarillas, Município El Cairo, in Valle del Cauca Department, Colombia, at 2,160m asl. Even though every stream within 5km of the type locality has been sampled, the species has not been recorded, suggesting that it has a very restricted range.
Habitat and Ecology
Specimens have been collected on vegetation next to an open stream in primary forest. Its breeding habits are not known, but it is likely to breed in streams.
It was reportedly a common species when collected.
There are no major threats, but given its small range it is susceptible to stochastic threatening processes.
The type locality is within a private reserve, which is part of a larger network of reserves. Maintenance of the habitat of this restricted-range species is essential to ensure its persistence, and it requires close population monitoring given its restriction to a single location.
Erik Wild, John Lynch 2004. Nymphargus armatus. In: IUCN 2014