Based on a phylogenetic analysis using implied weighting for 59 taxa and 155 morphological characters, we provided a taxonomic revision for Acuera. The genus was recovered as polyphyletic; herein we described three new genera and 16 new species, and proposed 23 new combinations, a new status and four new synonyms for Gyponini. Coarctanagen. nov. is described to include 15 species: C. rana (DeLong & Freytag) comb. nov. (type species) transferred from Acuera; five species transferred from Curtara, C. apena (DeLong & Freytag) comb. nov., C. pedica (DeLong) comb. nov., C. punctata (Spångberg) comb. nov., C. secara (DeLong & Triplehorn) comb. nov., and C. serpenta (DeLong) comb. nov.; and nine new species, C. asymmetricasp. nov., C. glabrasp. nov., C. nigromediasp. nov., C. occultatasp. nov., C. oriculasp. nov., C. parvulasp. nov., C. striatasp. nov., C. taurinasp. nov., and C. vilavelhasp. nov.Effossanagen. nov. includes eight species: two species transferred from Acuera, E. gloma (DeLong & Freytag) comb. nov. (type species) and E. fructa (DeLong & Freytag) comb. nov.; two species transferred from Curtara, E. gatuna (DeLong & Wolda) comb. nov. and E. scapa (DeLong) comb. nov.; and four new species, E. assimulatasp. nov., E. circumnotasp. nov., E. intrinsecasp. nov., and E. tenuemarginatasp. nov. A new monotypic genus, Propincurtaragen. nov., is described to include P. longilineasp. nov. The subgenus Parcana is raised to genus rank, comprising nine species: P. atitlana (Fowler) comb. nov., P. concilia (DeLong & Freytag) comb. nov., P. extara (DeLong & Freytag) comb. nov., P. mimica (DeLong & Freytag) comb. nov., P. spreta (Fowler) comb. nov., and P. ultima (DeLong & Freytag) comb. nov. (type species); also three species transferred from Curtara, P. albororata (Fowler) comb. nov., P. animosa (DeLong & Freytag) comb. nov., and P. ventusa (DeLong & Freytag) comb. nov.Curtara lineatana DeLong & Freytag is a junior synonym of P. concilia (DeLong & Freytag) comb. nov., Acuera inlustra DeLong & Freytag is a junior synonym of Hamana manifesta DeLong, and A. culmena DeLong & Freytag and A. prodiga DeLong & Freytag are synonyms of A. menaca DeLong & Freytag. Four species of Acuera are transferred to Curtara: C. facera (DeLong & Freytag) comb. nov., C. labella (Osborn) comb. nov., C. nama (DeLong & Freytag) comb. nov., and C. patula (DeLong & Freytag) comb. nov. Two new species, A. extenuatasp. nov. and A. umbrasp. nov. are described and placed in the subgenus Acuera. We provide descriptions and illustrations of the new taxa, redescription of the type species of the genera Acuera, Coarctanagen. nov., Effossanagen. nov., and Parcanastat. nov., 40 new country and Brazilian states records, and key to males of each genus.