Dacini

David, K. J. & Ramani, S., 2019, New species, redescriptions and phylogenetic revision of tribe Dacini (Diptera: Tephritidae: Dacinae) from India based on morphological characters, Zootaxa 4551 (2), pp. 101-146 : 104

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

Figures

FIGURE 2. Comparison between B. (B.) prabhui sp.nov. and B. (B.) caryeae (Kapoor).(A&K) head; (B&L) scutum; (C&M) thorax lateral view & legs; (D&N) abdomen; (E&O) wing; (F,G,H &P) aculeus; (I&R) spermatheca; (J&Q) spicules on distal end of eversible membrane.

FIGURE 19. Thorax of Tephritidae. (A) Spathulina acroleuca; (B) Acroceratitis tomentosa; (C) Zeugodacus trilineatus; (D) Bactrocera correcta; (E) Zeugodacus havelockiae; (F) Acroceratitis parastriata

FIGURE 21. Abdomen and sternite V (male) of Tephritidae. (A) Zeugodacus semongokensis; (B) Bactrocera harrietensis; (C) Dacus ramanii; (D) Dacus longicornis; (E), Zeugodacus zahadi; (F) Dacus ciliatus; (G) Sternite V (male) of Bactrocera; (H) Sternite V (male) of Zeugodacus.

FIGURE 23. Epandrium and surstyli (lateral view) of Tephritidae. (A) Bactrocera fastigata; (B) Bactrocera minax; (C) Zeugodacus semongokensis; (D) Dacus ramanii; (E) Acroceratitis bimacula; (F) Gastrozona fasciventris; (G) Ichneumonopsis burmensis; (H) Taeniostola vittigera

FIGURE 26. Post abdominal structures (female) of Tephritidae. A-G. Aculeus tip. (A) Taeniostola vittigera; (B) Bactrocera havelockiae; (C) B. digressa; (D) Z. cucurbitae; (E) Ichneumonopsis burmensis;(F) Dacus ciliatus; (G) B. harrietensis. H–M. Spermatheca. (H) B. albistrigata; (I) D. longicornis; (J) A. bimacula; (K) Gastrozona fasciventris; (L) Ichneumonopsis burmensis; (M) Taeniostola vittigera. N–R. Spicules on distal end of eversible membrane. (N) B. digressa; (O) B. blairiae; (P) D. longicornis; (Q) B. zonata; (R) B. latifrons.