The recognition of the species Triatoma maculata (Erichson, 1848) and Triatoma pseudomaculata (Correia e Espínola, 1964) has been and continues to be a subject of much disagreement. These species were also confused for some time by the author. Possibly, the reason for this confusion lies in the poor description of certain structures of these species, that one could not be certain about their distribution in Brazil. A careful comparative study involving both species is herein reported and it is concluded that it is T. pseudomaculata and not T. maculata that is being found in the States of Piaui, Ceará, Rio Grande do Norte, Paraíba, Pernambuco, Alagoas, Bahia, Minas Gerais, Goiás and in the Federal District - Brasília.