Fig. 2From: Repeated evolution of asymmetric genitalia and right-sided mating behavior in the Drosophila nannoptera species groupGenital and aedeagus shapes in D. pachea and closely related species. External genitalia and aedeagus shapes are compared across closely related species of D. pachea. Aedagus asymmetries are only found in D. acanthoptera and D. pachea. (a) ventral view of a D. acanthoptera male. The black frame indicates the position of male genitalia and the box with a dashed frame (b) shows a magnification with an erected penis. (c, f, i, l, o) Lateral views of male specimens and male genitalia of D. acanthoptera, D. pachea, D. nannoptera, D. machalilla, and D. bromeliae, respectively. (d, g, j, m, p) Male terminalia in lateral and posterior view. (e, h, k, n, q) Aedeagus in lateral and ventral view. The scale bar is 100 μmBack to article page