A total of 29,454 specimens of fruit fly were trapped in six sites of four counties (Janaúba, Jaíba, Nova Porteirinha and Itacarambí) of the north of the State of Minas Gerais, Brazil. The specimens were collected using McPhail plastic traps from January 1994 to December 1996. The trapped fruit flies belonged to Ceratitis capitata and to 20 species of Anastrepha. Ceratitis capitata was the predominant species in the urban areas and Anastrepha species were predominant in the field areas. A. obliqua, A. zenildae and Anastrepha n. sp.3 were the predominant species of the genera, whereas the predominant species differed among localities, according to host availability. The diversity indexes were low and the coefficient of similarity varied from 73 to 100%.
Fruit flies; Tephritidae; Anastrepha; Ceratitis capitata; ecology
