Scout bees are a type of worker bee.
Scout bees seek out new food sources. As a rule of thumb the foraging area around a beehive extends for 3km, although bees have been observed foraging twice and three times this distance from the hive.
Scout bees venture out into their surroundings to carefully scour for food, from the interior of caves to the openings into buildings. Once they finally get back from these quests, they dutifully inform their fellow bees of the available sustenance. Scout bees express their exciting food finds by dancing.
Scout bees also give off valuable details about the new food stashes via smell. Not only do they dance to explain to the others where the food is all waiting, they express it through smelling like the flowers and sugary nectar.