“…The majority of the 54 species of the genus [2], [6], [7], [8], [9], [10] occur in Caribbean islands, mainly Cuba, Jamaica and Hispaniola (see for instance [11], [12], [13], [14], [15]). The genus is represented in continental South America by one species in Venezuela ( R. arduus Armas, Villareal & Colmenares, 2009), one in the eastern Brazilian Amazonia ( R. sul Cokendolpher & Reddell, 2000) and another, recently described species from the northeastern Brazilian Atlantic Forest ( R. linsduarteae Santos, Dias, Brescovit & Santos, 2008) [8].…”