Abstract
The genus Listroscelis is part of Listroscelidini (Tettigoniidae: Listroscelidinae) and comprises 11 species of predatory katydids only known from Brazil. Currently, the group’s greatest richness is recorded in the Atlantic Forest biome. In this work, the new species Listroscelis cyanotibiatus sp. nov. is described to the Northeastern Atlantic Forest biome. Morphological characters of both sexes and the male internal genitalia are described. A distribution map of the species and comments on its natural history are provided.
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