This paper deals with de descriptions of two new genera and six new species of Miridae, tribe Cylapini (Hemiptera), as follows: Tucuruisca n. gen., T. pilosa n. sp.,Tucuruí, State of Pará; Amapacylapus rondoniensis n. sp., Ji-Paraná, Rondônia; A. nigricapitis n. sp., Ji-Paraná, Rondônia; Cylapinus n. gen. C. minusculus n. sp., Ji-Paraná, Rondônia e Cylapus brasiliensis n. sp., Ouro Preto, Rondônia, Brazil. Illustrations of habitus and male genitalia are included.