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Leishmaniases are a complex of sand fly-borne diseases that are considered a public health issue in several countries. Brazil presents high leishmaniases rates. The South of Ceará State, known as Cariri region, shows worrying statistics mainly on American tegumentary leishmaniasis. In Barbalha, which is one of the municipalities in this region, there is still a lack of studies regarding the local phlebotomine (Diptera: Psychodidae) fauna in order to help clarify the high rates. This study aimed to characterize such fauna by capturing sand flies with light traps during a four-year period. A total of 3730 sand flies were captured, of which 37.8% were females. Fourteen species were found: 13 of the Lutzomyia genus and one of the Brumptomyia genus. Of the Lutzomyia species, four were proven and five had potential involvement in leishmaniasis transmission. Lutzomyia longipalpis was the most common species (66.97%). This predominance, especially in the urban area, indicates its epidemiological importance and adaptation to environmental conditions modified by human activity. In fact, further studies are still required to accurately determine the behavioral features of these vectors in order to guide public health measurements towards its control and prevention., (Copyright © 2020 Elsevier B.V. All rights reserved.)