Trichorhina tatianae sp. nov., found during recent surveys in Araranguá, Morro dos Conventos, in the State of Santa Catarina, is described herein. The new species can easily be differentiated by the lateral expansion of the ischium of pereiopod 7 of the male. Trichorhina tatianae sp. nov. is recorded only from its type-locality.
Terrestrial isopod; Brazil; Trichorhina; new species; Neotropical
