New Neotropical species of Hygronemobius Hebard, 1913 (Orthoptera: Grylloidea: Nemobiinae), including a brief discussion of male genitalia morphology and preliminary biogeographic considerations of the genus.

Three new Neotropical species of Hygronemobius Hebard are described from Atlantic Forest remnants in southeastern Brazil: Hygronemnobius indaia sp. n. and Hygroneinobius iperoigae sp. n. from the state of São Paulo and Hygroneinobius guriri sp. n. from the state of Espírito Santo. We provide photographs of types and male genitalia, and discuss the morphology of male genitalia, taxonomy, calling songs and biogeographic distribution of the genus.