Nectar  Nectar is a sugar-rich liquid produced by plants in glands called nectaries or nectarines, either within the flowers with which it attracts pollinating animals, or by extrafloral nectaries, which provide a nutrient source to animal mutualists, which in turn provide antiherbivore protection. Common nectar-consuming pollinators include mosquitoes, hoverflies, wasps, bees, butterflies and moths, hummingbirds, honeyeaters and bats. Nectar plays an important role in the foraging economics and overall evolution of nectar-eating species; for example, nectar and its properties are responsible for the differential evolution of the African honey bee, "A. m. scutellata" and the western honey bee. Nectar is an ecologically important item, the sugar source for honey. It is also useful in agriculture and horticulture because the adult stages of some predatory insects feed on nectar. For example, the social wasp species "Apoica flavissima" relies on nectar as a primary food source. In turn, these wasps then hunt agricultural pest insects as food for their young. For example, thread-waisted wasps (genus "Ammophila") are known for hunting caterpillars that are destructive to crops. Caterpillars however, do eventually become butterflies and moths, which are very important pollinators. Nectar secretion increases as the flower is visited by pollinators. After pollination, the nectar is frequently reabsorbed into the plant. "Nectar" is derived from Greek "nektar", the fabled drink of Greek gods. The word is derived as a compound of "nek", meaning death, and "tar", meaning the ability to overcome. The common use of nectar refers to the "sweet liquid in flowers", first recorded in AD 1600. A nectary or nectarine is floral tissue found in different locations in the flower, and is one of several secretory floral structures, including elaiophores and osmophores, producing nectar, oil and scent respectively. The function of these structures is to attract potential pollinators, which may include insects, including bees and moths, and vertebrates such as humming birds and bats. Nectaries can occur on any floral part, but they may also represent a modified part or a novel structure. The different types of floral nectaries include; Most members of Lamiaceae have a nectariferous disc which surrounds the ovary base and derived from developing ovarian tissue.