This species from southeastern Brazil occurs in the states of Minas Gerais, Rio de Janeiro, São Paulo and Paraná. Populations in the states of Espírito Santo (Almeida and Angulo, 2006) and Santa Catarina (Kwet, 2007) were recently found not to be conspecific with Leptodactylus marmoratus. The species ranges up to 1200 masl.
Habitat and Ecology
It is a diurnal species that lives on the ground in primary and secondary forest, and also in clearings and on the forest edge, as well as in gardens. Males commonly call from the ground under vegetation in the late afternoons. The eggs are laid on the ground; tadpoles live and develop in the leaf-litter outside water.
It is a very common species. It experienced a population decline at Estação Biológica de Boracéia, but has since rebounded and is abundant again.
The major threats are probably related to habitat loss due to agriculture, clear-cutting and human settlement.
It occurs in many protected areas.
This species is a complex of several cryptic species. Kwet (2007) recently removed Leptodactylus nanus from the synonymy with Leptodactylus marmoratus.
Ariadne Angulo 2010. Adenomera marmorata. In: IUCN 2013