This species complex is widely distributed in Madagascar except the high plateau and in the arid southwest. The map is not very meaningful, since it is an unresolved complex. It has been recorded from sea level up to 1,600m asl.
Ronald Nussbaum, Miguel Vences 2004. Mantidactylus ulcerosus. In: IUCN 2010 . IUCN Red List of Threatened Species. Version 2010.4 . <www.iucnredlist.org>