Pupal and larval-pupal parasitoids were obtained from 5% of the 1,413 tephritid puparia collected in four localities of the Tucuman province, Argentina, from April, 1991 to April, 1993. Ceratitis capitata (Wiedemann) was attacked by Pachycrepoideus vindemmiae (Rondani) (Pteromalidae), a pupal parasitoid, and Aganaspis pelleranoi (Brethes) (Eucoilidae), a larval parasitoid. Anastrepha spp. were attacked by Doryctobracon areolatus (Szepligeti) (Braconidae), a larval parasitoid, and also by A. pelleranoi. Information about parasitism, percentage of emergence of tephritid species and pupal viability in different localities is provided.