Mecomera Audinet-Serville, 1839 (Dermaptera: Spongiphoridae): proposal of new diagnosis, descriptions and illustrations of all three-known species.

Mecomera Audinet-Serville, 1839 (Spongiphoridae: Sparattinae) is a neotropical genus with three species: M. brunnea Audinet-Serville, M. chacoensis (Borelli) and M. reichardti Brindle. By comparing specimens of the three Mecomera species (types and ordinary material) to their respective original descriptions and drawings, it was determined that the descriptions are over-simplified and the drawings are not fully accurate. To prevent future identification problems, new diagnosis, descriptions and images of the external body and male genitalia of the three Mecomera species are provided.