A set of multi-entry identification keys to African frugivorous flies (Diptera, Tephritidae)

Massimiliano Virgilio, Ian White, Marc De Meyer


Bactrocera zonata


Genus genus unknown or Bactrocera, Zeugodacus and Dacus. Key to genera Gen.o.5: sex male or female. Head Gen.h.5: first flagellomere longer than facial margin, Gen.h.15: ocellar setae absent. Wings Gen.w.5: cell bcu (cup) appendix longer than base, Gen.w.10: (males) wing banding Gen.w.10.2: not Ceratitis pattern, Gen.w.20: (females) wing banding not Ceratitis pattern. Thorax Gen.t.5: prescutellar setae present, Gen.t.10: basal scutellar setae absent, Gen.t.15: anepisternal setae 1, Gen.t.25: scutellum pattern Gen.t.25.1: unicolor, white to yellow (at most along basal margin with transverse darker band), Gen.t.45: postpronotal lobe unicolor, Gen.t.50: anepisternal stripe absent or vertical, Gen.t.55: scutum with a medial yellow stripe no. Abdomen Gen.a.5: tergites separated, Gen.a.10: (males) posterior lobe of surstyli short, Gen.a.15: (males) abdominal sternum V deeply concave on posterior margin. Ecology and distribuion distribution West Africa, East Africa, Central Africa, Southern Africa or Indian Ocean, (males) lure attractant methyl eugenol (ME). Key to Bactrocera, Zeugodacus and Dacus sex male or female, (males) lure attractant methyl eugenol (ME). Thorax BZD.t.5: predominant colour of scutum colored (orange, red, brown), BZD.t.10: postpronotal lobe colour entirely pale (yellow or orange), BZD.t.20: transverse suture (notopleural suture) with triangular yellow mark no, BZD.t.45: scutum with a medial vitta or stripe no, BZD.t.60: scutellum extensively marked (patterned) no, BZD.t.90: anepisternal stripe extent to anterior notopleural seta, BZD.t.95: yellow marking on anatergite and katatergite both anatergite and katatergite, BZD.t.120: scutum with anterior supra-alar setae yes, BZD.t.125: scutum with prescutellar acrostichal setae yes. Abdomen BZD.a.10: tergites fused no, BZD.a.25: medial longitudinal stripe on tergite 4 yes or no, BZD.a.55: (males) posterior lobe of surstyli short, BZD.a.60: (males) abdominal sternum V deeply concave on posterior margin. Wings BZD.w.15: cell c with covering of microtrichia along entire length at least anteriorly no, BZD.w.20: cell br (narrowed part) with extensive covering of microtrichia no, BZD.w.35: complete costal band no, BZD.w.95: anal streak no, BZD.w.120: wings patterned (other than costal band and anal streak) no, BZD.w.150: transverse mark over crossvein dm-cu (not direct to any on r-m) no. Legs BZD.l.5: fore femur colour BZD.l.5.2: unicolor yellow / pale, BZD.l.10: mid femur colour BZD.l.10.2: unicolor yellow / pale, BZD.l.15: hind femur colour BZD.l.15.2: unicolor yellow / pale.