The new genus is created for the neotropical spp. until now placed in the genus Dorocordulia. The differences between these 2 genera are analyzed, and the characters of Navicordulia are described in detail. The $ of N. errans (Calvert, 1909) and the following new spp., all from Brazil, are described: N. amazonica sp.n., N. atlantica sp.n., N. kiautai sp.n., N. leptostyla sp.n., N. longistyla sp.n., N. mielkei sp.n. and N. miersi sp.n. A key is provided for the 10 spp, of the new genus that becomes the largest genus of neotropical Corduliidae,