Resolving the synonymy and polyphyly of the ‘ Drosophila bakoue species complex’ (Diptera: Drosophilidae: ‘ D. montium species group’) with descriptions of two new species from Madagascar Author Yassin, Amir Author Suwalski, Arnaud Author Raveloson Ravaomanarivo, Lala H. text European Journal of Taxonomy 2019 2019-06-18 532 1 26 journal article 26436 10.5852/ejt.2019.532 fbea3203-a10b-4e4f-b5f3-3d1387bc84c3 3251569 1301752E-3FD5-4F3E-A4F3-6766D18C709A ‘ D. vulcana species complex’ new complex Figs 1–2 , 3C , 8 A–D, 9A–F Diagnosis Male abdominal tergites yellow, T2–T4 with broad brown or black stripes, T5 and T6 with a thin black stripe expanding on the middle and fainting towards the margin ( Fig. 8A ); cercal ventral lobe (secondary clasper) partially separated from cerci with two or three very large curved black medial teeth on the internal margin; surstylus with a lateral row of strong, short prensisetae on the outer and inner margins (no medial prensisetae), the innermost one significantly long; hypandrial median process tapering ( Fig. 3C ); aedeagus hirsute with cuticular scales; inner paraphyses as long as aedeagus, with finely serrated margins ( Fig. 9 A–D). Female abdominal tergites darker than male’s ( Fig. 8B ). Remarks Chassagnard et al. (1997) mentioned a species, named ‘ Drosophila ( Sophophora ) sp. C’, belonging to the ‘ D. montium species group’ in Malawi with males having diffuse brown T2–T4 and pale T5 and T6. This species either belongs to one of the two species of this complex or represents a new species belonging to the complex. Elucidating its identity needs further investigation. Taxon content D. vulcana Graber, 1957 . D. seguyiana sp. nov.