A pollinator is an animal that moves pollen from the male anther of a flower to the female stigma of a flower . This helps to bring about fertilization of the ovules in the flower by the male gametes from the pollen grains.
Insect pollinators include bees, ( honey bees, solitary species, bumblebees); pollen wasps (Masarinae); ants ; flies including bee flies, hoverflies and mosquitoes; lepidopterans, both butterflies and moths; and flowerbeetles. Vertebrates, mainly bats and birds , but also some non- bat mammals ( monkeys , lemurs, possums, rodents) and some lizards pollinate certain plants . Among the pollinating birds are hummingbirds, honeyeaters and sunbirds with long beaks; they pollinate a number of deep-throated flowers .
A pollinator is different from a pollenizer, a plant that is a source of pollen for the pollination process.