One genus, Unaica gen. n., and seven species (Unaica plumbea sp. n., Chamelania acaena sp. n., Chamelania celyphana sp. n., Chamelania corumbae sp. n., Chamelania lutea sp. n., Chamelania quasirufa sp. n., Chamelania belemana sp. n.) are described and illustrated. Chamelania is redescribed and two of its species, Chamelania jaliscana and Chamelania auricoma, are listed. Lophoderus xanthophilanus WALKER, 1863 is transferred to Chamelania. Notes on Odonthalitus RAZOWSKI, 1991 and an illustration of the male genitalia of O. poas BROWN, 2000 are included.
The genus Satronia is redescribed and discussed. Distributional data on 11 species are given; 9 new species (Satronia pentha sp. n., S. priva sp. n., S. catharma sp. n., S. sesops sp. n., S. mantissa sp. n., S. lita sp. n., S. laepha sp. n., S. sinuata sp. n., S. pheidologeton sp. n.) are described, and references to papers on Neotropical Grapholitini are provided.
Three genera (Brasilnotia gen. n., Malinova gen. n., Tiburica gen. n.) and three species (Brasilnotia planaltinana sp. n., Malinova novaelimae sp. n., Tiburica paranae sp. n.) from Brazil are described and illustrated.
Six genera – Lobesia, Ophiorrhabda, Megalota, Eumarozia, Zomaria and Alexiloga – are treated, and the following species are described as new: Lobesia uncata sp. n., Eumarozia atrotincta sp. n., and Zomaria dyscrita sp. n. Alexiloga defluxana is removed from the synonymy of A. rubiginosana and four species are redescribed. Statherotis hyeroglypha is transferred to Ophiorrhabda.