The coralsnake Micrurus decoratus is restricted to the Atlantic Rain Forest from southeastern Brazil and data on its geographic distribution and natural history are poorly known. In this paper, we modeled its geographic range using the GARP program. Map was generated by combining the 20 best models and predicted the occurrence of Micrurus decoratus in the Atlantic Rain Forest, indicating the importance of this biome for the preservation of this species. Our study showed that ecological niche modeling might be an important computational tool to supplement traditional field studies in herpetology, allowing the identification of areas to be protected, and for the formulation of specific public policies for threatened species.
