Three new species of Paramaronius Wittmer from southeastern Brazil are described and illustrated: Paramaroniusserranus sp. n., Paramaroniusbrancuccii sp. n. and Paramaroniuscavipennis sp. n. Paramaroniusimpressipennis (Pic) is redescribed, with supplementary description of the female. This species is recorded from Northeastern Brazil for the first time and its distribution pattern is discussed. A distribution map of Paramaronius in South America is provided. An identification key to all known species of the genus as well as photographs are given.
Keywords: Chauliognathini; description; distribution; key; taxonomy.