A sex comb is a male-specific group of bristles located on the first leg in many species of the Drosophilidae family (Atallah et al, 2009).
The sex comb plays an important role in increasing the amount of successful matings in many different Drosophila species
This row of bristles is a secondary sexual trait, displaying high morphological divergence during evolution. In many Drosophila species, the sex comb undergoes an interesting morphogenetic process, in that this group of bristles rotates during development
Sex combs have been used to explore several developmental and evolutionary questions (True, 2006; Kopp, 2011)