This species is known only from the type locality in Selva Río de Oro, Chaco Province, Argentina, at 70m asl.
Habitat and Ecology
There is no information on its habitat and ecological requirements, although it is likely to breed in water.
It is known only from the type specimen collected in the 1960s, and has not been observed during at least three attempts to find it in recent years.
Its major threats are not known.
It is not currently known to occur in any protected areas.
This species was previously within the genus Hyla but has recently been moved to the resurrected genus Hypsiboas (Faivovich et al. 2005). The taxonomic status of this species is uncertain.
Jorge Céspedez, Diego Baldo 2004. Hypsiboas varelae. In: IUCN 2014