This species occurs on mountain crests east and north of Loja, in Loja and Zamora Chinchipe Provinces, southern Ecuador, at 2,710-3,100m asl. It is known from only three localities.
Habitat and Ecology
It inhabits páramo grassland and sub-páramo bush land. Specimens have been collected beneath rocks or on vegetation. It is not known whether or not it tolerates habitat degradation. Breeding is presumed to take place by direct development, but the site of egg deposition is not known.
It was relatively common in the late 1960s, but there has been much habitat loss since then, and insufficient fieldwork in the area where it occurs.
The major threat is habitat destruction and degradation which is taking place due to agricultural development (including livestock farming) and human settlement.
It is not known from any protected areas, and there is a need for improved protection of remaining habitat in the range of this species.
John Lynch, Luis A. Coloma, Santiago Ron 2004. Pristimantis vidua. In: IUCN 2014