Generic characters of Irundisaua Martins & Galileo, 2005 are expanded (antennal formula, width of prosternal process inferior or equal to the diameter of procoxa, protibia enlarged and flattened) and two species are transferred from Acanthoderes Audinet-Serville, 1835: I. forsteri (Tippmann, 1960) comb. nov. from Peru and Brazil (Amazonas) and I. ucayalensis (Tippmann, 1960) comb. nov. from Ecuador, Peru and Brazil (Amazonas).Three new genera are described: (1) Catuana comb. nov., type species, C. spinicornis (Tippmann, 1960) comb. nov., characterized by the mesosternal tubercle; (2) Mundeu comb. nov., type species, M. maculicollis (Bates, 1861) comb. nov., with rounded sides of protorax and expanded protibiae; (3) Urangaua comb. nov., with eyes divided and finelly granulated, length of antenomeres III-IV subequal to V-XI; the genus is proposed of two species: U. analis Melzer, 1935 comb. nov., type species, and U. subanalis (Zajciw, 1964) comb. nov. A key to the species of Urangaua is added.
Catuana; Irundisaua; Mundeu; taxonomy; Urangaua
