Metacommotria beckeri, n. gen., n. sp., Cipopeoria camura, n. gen., n. sp., and Harnochina digitata, n. sp. are described from Brazil. A description is also provided for the female of Zapalla dentata Shaffer, the first known female representative of the genus. The latter species, previously known only from the type locality of southeastern Brazil, is herein recorded from Planaltina (Distrito Federal), Alto Paraiso (Goias), and Chapada Guimaraes (Mato Grosso). Photographs of adult moths are provided for all four species, male head profiles for the three new species, and male antenna photomicrographs and wing venation drawings for M. beckeri and C. camura. Male genitalia photographs are given for M. beckeri, H. digitata, Z dentata, and female genitalia photographs for C. camura and Z. dentata.