Key to genera of the tribe Dacini

1. Wing with curvatures on vein R 2+3 and M, pedicel plus flagellomere longer than face............... Monacrostichus Bezzi

- Wing without curvatures on vein R 2+3 and M, pedicel plus flagellomere usually shorter than face; if longer than face, abdominal tergites fused......................................................................................... 2

2. Abdominal tergites fused (Fig. 21 C, D, F), aculeus with three pairs of preapical setae (Fig. 26 F).......... Dacus Fabricius

- Abdominal tergites free (Fig. 21 A, B), aculeus usually with four pairs of preapical setae (rarely two/absent)............. 3

3. Posterior lobe of surstylus as long as or shorter than anterior lobe (Fig. 23 A, B), sternite V of male usually with deep posterior emargination (Fig. 21H) (shallow emargination in species of subgenus group Melanodacus and subgenus Tetradacus), scutum often without medial postsutural yellow vittae/marking (Fig. 19W) (present in species of Melanodacus group of subgenera, subgenus Tetradacus, Hemizeugodacus, Notodacus, Apodacus, Bulladacus of Bactrocera group of subgenera)................................................................................................. Bactrocera Macquart

- Posterior lobe of surstylus 8‾10 times longer than anterior lobe (Fig. 2C), sternite V of male with shallow/flat posterior emargination (Fig. 21G), scutum usually with medial postsutural yellow vitta (Fig. 19C) (absent in few subgenera); scutellum often with two pairs of scutellar setae........................................................... Zeugodacus Hendel