This species is known only from the vicinity of the type locality, near Balzapata, and upper Río Chiriaco, in Amazonas Department, Peru. It has an elevational range of 1,850–1,910 m asl. It is not known if this species is restricted in range, or whether or not it is likely to be found more widely.
Habitat and Ecology
This is a cloud forest species about which very little is known. Reproduction is by larval development, whereby the eggs are laid in folded leaves overhanging water and, upon hatching, the larvae drop off into water below to continue development (Cannatella 1982). Tadpoles have been found in a shallow (0.3 m) roadside ditch over which vegetation was hanging (Cannatella 1982).
Its population status is not known.
It might be threatened by the agricultural activity (such as cultivation of coffee) that is occurring in area surrounding the type locality.
It might occur in the Zona Reservada Cordillera de Colán and the Área de Conservación Privada Hierba Buena–Allpayacu (designated in 2011), but this requires confirmation.
More information is needed on this species' distribution, population status, ecology, and threats.
Red List Status
Data Deficient (DD)
Listed as Data Deficient in view of the absence of recent information on its extent of occurrence, status and ecological requirements.
This species was first assessed under the generic name Phyllomedusa, but has since been transferred to the genus Callimedusa (Duellman et al. 2016).
IUCN SSC Amphibian Specialist Group 2018. Callimedusa duellmani. The IUCN Red List of Threatened Species 2018: e.T55850A89204561. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T55850A89204561.en .Downloaded on 23 January 2019