Two new species and new records of Notomicrus Sharp, 1882 (Coleoptera: Noteridae) from Brazil.

Two new species of Notomicrus Sharp, 1882 from Brazil are described and illustrated: N. meizon sp. nov.

On Hydrocanthus Say, 1823 (Coleoptera: Noteridae): description of a new species, two new synonyms and a key to Brazilian species.

A new species of Hydrocanthus Say, 1823 is described and illustrated, H. zimmermanni sp. nov.

Two new species and new records of Liocanthydrus Guignot (Coleoptera, Noteridae) from Brazil.

Two new species of Liocanthydrus Guignot, L. zanclus sp. nov.