A new Brazilian genus of gall midge, Cerciplanusgen. nov. Garcia and Urso-Guimarães (Diptera: Cecidomyiidae) and two new species, Cerciplanus tocantinensissp. nov. Garcia and Urso-Guimarães and Cerciplanus ciposp. nov. Garcia and Urso-Guimarães are described. The first species is inducer of leaf galls on Ouratea spectabilis (Ochnaceae) while the latter on Heteropterys sp. (Malpighiaceae). The host plants are associated with vegetation of Cerrado biome in Tocantins and rupestrian field in Minas Gerais States, both phytophysiognomies of Brazil. The new genus and the new species are described and illustrated based on immature, adults and galls. Geographical distribution of the cecidomyiid species and the host are compared and commented.