A new Ochterus (Hemiptera: Heteroptera: Ochteridae) from northeastern Brazil, with a key to the species recorded from the country.

Ochterus santosi sp. nov., from the state of Piauí, northeastern Brazil, is described, illustrated, and compared with other species of the genus from the Americas.

Kempnyia Puri, a new species of Perlidae (Plecoptera) from Rio de Janeiro, Brazil.

Kempnyia puri sp. nov. is described from male specimens from Rio de Janeiro State, southeastern Brazil.