Comments on the recent changes in taxonomy of pygmy unicorns, with description of a new species of from Brazil (Insecta, Tetrigidae, Cleostratini, Miriatrini).

The tribe Cleostratini Bolívar, 1887 Storozhenko, 2016 does not represent a monophyletic taxon because it gathers various Tetrigidae genera with various types of horn and prolongation of frons or vertex. Prolongation of these structures is present in morphologically and biogeographically distant groups. We do not regard Miriatrini Cadena-Castañeda & Cardona, 2015 synonymous with Cleostratini because the genus Bolívar, 1906 belongs to a group of genera distant from Stål, 1877. There is no adequate diagnosis for proposed groups of genera forming tribes Cleostratini or Miriatrini. Miriatrini are monotypic and include only , Cleostratini are monotypic as well. Storozhenko, 2016 is regarded synonymous with , , and (Cadena-Castañeda & Cardona, 2015), are not member. Herein a new species of pygmy unicorn, Silva & Skejo, , is described from Atlantic Forest remnants in northeast of Brazil, collected on the Estação Serra do Ouro (municipality of Murici, Alagoas state). Distribution data, morphological characterization, and an identification key to species are also presented.