This species was previously known only from Kasiki, at 2,300 m asl in the Marungu Highlands in southeastern Democratic Republic of Congo (this locality was inadvertently stated to be in northeastern Democratic Republic of Congo by Schiøtz (2006a)). Channing et al. (2013) expanded the distribution to include eight additional localities across southern Democratic Republic of Congo, northern Zambia, northwestern Mozambique, and eastern Zimbabwe. The limits of its distribution in the region's extensive savanna is unknown. The map associated with this assessment is therefore an approximate representation of its range, limited by known sites and encompassing the intervening areas.
Habitat and Ecology
It is associated with emergent vegetation at the margins of swamps, rivers, vleis, lakes and pools in savannah and grassland habitats, where is it presumed to breeds by larval development.
There is little information, but it is likelt to be a common species in suitable habitat.
Due to expanding human population, grasslands in the region are being converted to agricultural uses and burned to maintain cattle pasture. Wetlands are likely to also have their water diverted for agricultural purposes. However, localised threats are unknown.
Further work is required to clarify the taxonomic status of this species, which in turn needs to inform its distribution, population status, ecology, and threats.
Red List Status
Least Concern (LC)
Listed as Least Concern in view of its wide distribution, presumed large population and large amount of available suitable habitat. However, the limits of the species distribution remain uncertain.
This taxon was traditionally treated as a synonym of Hyperolius nasutus. However, Schiøtz (2006b) considered it to be closer to H. benguellensis, and it is treated here as a distinct species, pending clarification of its status.
IUCN SSC Amphibian Specialist Group 2016. Hyperolius nasicus. The IUCN Red List of Threatened Species 2016: e.T136068A18366566. http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T136068A18366566.en .Downloaded on 14 December 2018