Men are from ants, women are from grasshoppers. At least if you're a strepsipteran fly. Females are basically bags of eggs inside of insect hosts, while males develop in other species. The arrow here shows the female Caenocholax fenyesi in a cricket. At the bottom is a free-living male.  

(via Parasite lives 'double life' - University of Oxford)

Credit: Jeya Kathirithamby.