This species ranges from the headwaters of Tachira River in the Eastern Cordillera of the Andes, in the Department of Norte de Santander, Colombia, east along the northwestern slopes of the Cordillera de Merida in Venezuela in Táchira and Mérida States. Its known altitudinal range is 1,250-1,700m asl.
Habitat and Ecology
It is a species of semi-deciduous montane forests, and it has been found singing from puddles in the middle of a road in a very disturbed area. It breeds in streams.
There is little information on abundance, due to lack of survey work, but it has been seen as recently as 1995. There is just one Colombian record. This species was listed by Vial and Saylor (1993) as having experienced population declines, but there is no evidence to support to this point or view, and the locality given ("Sierra del Turimiquire, Sucre/Monagas") is clearly in error. In 2001 it was reportedly found without difficulty in brooks of cloud forest (Barrio Amorós, 2001).
It is not obviously threatened, since it has been found in degraded habitats. Almost all of its populations are in places without protection that have been much affected by coffee plantations.
It might occur in the El Tama National Park in both Colombia and Venezuela, but its presence there has not been confirmed.
This species was previously within the genus Hyla but has recently been moved to the resurrected genus Hyloscirtus (Faivovich, et al., 2005).
Enrique La Marca, Juan Elías García-Pérez, María Cristina Ardila-Robayo, John Lynch 2004. Hyloscirtus lascinius. In: IUCN 2014