Figure 3. Hind legs of male (a) and female (b,c) green orchid bees. Male bees have an enlarged hind tibia with a hole providing access to the spongy compartment which acts as storage for fragrant compounds collected from its environment. Females have corbiculae (pollen baskets) for collecting pollen and propolis (plant resins).
Credit: Aaron Mullins, University of Florida, Ft. Lauderdale Research and Education Center