"Hymenopterans, the "membrane-winged" insects, include bees, ants, and a large number of other insect taxa collectively referred to as wasps. The Hymenoptera include famous examples of social insects, such as honeybees and true ants."
"Hymenoptera have developed regimented social systems in which members are divided into worker, drone, and queen castes. Such social hymenoptera may live together in nests or hives of many thousands of individuals, all descended form a single queen. Not all hymenoptera are social, however; many live a solitary life, coming together only for a brief mating."
"Flowers pollinated by bees are typically yellow or blue and often have patterns visible only under ultraviolet light, which bees can see. Many bee-pollinated flowers are bilaterally symmetrical and produce abundant nectar, such as the orchids, some species of which depend on a single species of bee for pollination. Other plants may be pollinated by ants, or may rely on ants living within them to keep predators away. Many of these plants produce large quantities of nectar, or produce other fluids for the ants."