This species is known from the type locality, Campo Grande da Serra, and nearby Nova Manchester in São Paulo, in the state of São Paulo, Brazil. The type locality is between 600 and 800m asl.
Habitat and Ecology
Specimens were found on shrubs by the side of a brook at the type locality. There is no information on breeding habits, but reproduction might take place in streams.
This species is only known from a few specimens, and recent surveys in the area have not recorded it.
Habitat loss due to infrastructure development has destroyed the species' habitat at the type locality. Chytridiomycosis also cannot be ruled out as a threat.
This species does not occur within a protected area, and protection of any remaining habitat for the species is urgently needed. Further survey work is required to determine the biology and population status of this species, and whether or not it still survives at, or outside the vicinity of, the type locality.
Red List Status
Critically Endangered (CR)
Listed as Critically Endangered because its Extent of Occurrence is less than 100 km2 and its Area Of Occupancy is less than 10km2, its distribution is severely fragmented, and there is continuing decline in the extent and quality of its habitat in the state of São Paulo, Brazil.
This species was previously included in the genus Hyla but has recently been moved to the resurrected genus Hypsiboas (Faivovich et al. 2005).
Paulo Garcia, Miguel Trefaut Rodrigues 2004. Hypsiboas cymbalum. The IUCN Red List of Threatened Species 2004: e.T55461A11300769. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T55461A11300769.en .Downloaded on 19 January 2019