A new genus and species, Tatupa grafei Tyts, Namyatova & Konstantinov, gen. et sp. nov. (Heteroptera, Miridae, Cylapinae, Fulviini), is described from Brunei Darussalam. A diagnosis, photographs of the dorsal habitus, scanning micrographs of selected morphological structures, and illustrations of male and female genitalia are provided for this new species. Its taxonomic placement within the subfamily Cylapi-nae is briefly discussed. A comparison with the morphologically most similar genus, Proamblia Bergroth, 1910, is made, and scanning micrographs of Proamblia are also provided.