The following new species are described: Iliana bolivianus Mielke & Casagrande, sp. n., from Bolivia (La Paz); Iliana miersi Mielke & Casagrande, sp. n., from Brazil (Rio de Janeiro State, Parana, Santa Catarina) and Iliana nirtoni Mielke & Casagrande, sp. n., from Brazil (Rio de Janeiro State). Tosta capra Austin, 1999, syn. n., and Tosta saltarana Steinhauser, 2007, syn. n., are new synonyms of Iliana ronzulus Bell 1937. Two new genera are described: Austinus Mielke & Casagrande, gen. n., type species: Echelatus heros Mabille & Boullet, 1917 and Emmelus Mielke & Casagrande, gen. n., type species: Telemiades purpurascens Mabille & Boullet, 1912. Lectotype for Echelatus heros Mabille & Boullet, 1917 and neotype for Telemiades purpurascens Mabille & Boullet, 1912 are designated. All species are illustrated, including their male genitalia; those of the female only when available. New distributional data are given.