A new species of Rhagoletis from the humid tropics in Mexico is described. Specimens of Rkagoletis turpiniae, n. sp., were collected in Xalapa and Los Tuxtlas, Veracruz, Mexico. Based on morphological characteristics of male and female terminalia, this new species is placed in the cingulata species group. Information on parasitoids and host plants of R. turpiniae is included, and two species of the plant family Staphyleaceae are recorded for the first time as a host for the genus Rhagoletis Loew.