Three female specimens of Peropteryx leucoptera were collected in the Refúgio da Vida Silvestre Mata do Junco, a fragment of Atlantic Forest located in the state of Sergipe, northeastern Brazil. These specimens represent the first record of the species for Sergipe, increasing to 44 the number of bat species recorded in this state. A summary of locality records for P. leucoptera indicates a disjunct distributional pattern for this species, with the majority of the records concentrated in the northern South America and a separate population in the Atlantic Forest of northeastern Brazil.