This species is known from the states of Amazonas, Pará and Rondônia, in northern Brazil, and from the departments of Beni and Santa Cruz, in Bolivia (Caramaschi 2010). It occurs in lowland areas of the Amazon basin at about 90 m asl.
Habitat and Ecology
It is a terrestrial species, likely a lowland forest leaf litter dweller like its congeners. It has been reported in proximity to an urban area (Fonseca et al. 2012). A male has been reported calling from a temporary pond (Fonseca et al. 2012), suggesting that this species may breed in ponds with aquatic tadpoles.
No direct information on population status is currently available for this species; however, assuming that it has been treated as Elachistocleis bicolor in the past (see Caramaschi 2010), it is possible that it may be a locally common species.
There is no direct information on major threats to this species, although given its widespread occurrence it is possible that there may be localized threats in the form of human settlement development, agriculture, livestock farming and logging.
Its current range includes a number of protected areas, so it is likely that it may occur within one or more of these. More information is needed on this species' population status, natural history and threats.
Red List Status
Least Concern (LC)
Listed as Least Concern given that it has a widespread distribution over a large area of the Amazon basin which still contains suitable habitat.
Caramaschi (2010) considered Elachistocleis ovalis a nomen dubium associated to a species inquirenda (a species of doubtful identity requiring further investigation); biological populations in Brazil formerly associated to this name were reassigned to other species.
IUCN SSC Amphibian Specialist Group, 2013. Elachistocleis helianneae. The IUCN Red List of Threatened Species 2013: e.T18435492A19807580. http://dx.doi.org/10.2305/IUCN.UK.2013-1.RLTS.T18435492A19807580.en .Downloaded on 22 January 2019