This taxon has been proposed as a new species (Duarte and Giannoni 1996), but has not yet been formally described with vouchered material. The current size and distribution of the population is not known., as it was only discovered in 1992 (Duarte and Giannoni 1996). A population is known to exist in an isolated patch of Atlantic rain forest near the city of Capao Bonito in the state of SÃ£o Paulo. The maximum population size for species is 4,500 individuals (Duarte et al. 2006).
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