A new species of Smicridea McLachlan 1871 (Trichoptera: Hydropsychidae) from the Caatinga biome and new distributional records from Brazil.

A new species of Smicridea (Smicridea) McLachlan 1871 is described and illustrated based on specimens collected from the Caatinga biome, in Sete Cidades National Park, Piauí state, and Ubajara National Park, Ceará state, northeastern Brazil. Based on phallus morphology, Smicridea (Smicridea) caatinga sp. nov.