Figure 1

Haldane's Rule in hermaphrodites: a normal reproductive system in Albinaria hippolyti aphrodite (a) with parts that serve male (penis, penial appendix and epiphallus) and female (vagina, spermatophore receiving organ and free oviduct) functions, and in an A. hippolyti aphrodite × A. hippolyti harmonia hybrid individual (b) with strongly deformed male parts and unaffected female parts.