Bootes, whose Greek name means shepherd, was the son of Demeter, the goddess of the Earth. His place was assigned to him in the sky for having invented the plow. Another legend makes Boötes (also called Arcas or Arcturus) the son of Zeus & the nymph Callisto. Callisto, turned into a bear by Hera, Zeus wife, was nearly killed by his son one day while he was hunting. Zeus saved her & made her a place in the sky where she became Uras Major, the Big Dipper.
Arcturus is a Greek word meaning bear keeper. Arcturus is sometimes represented at the head of the dogs of Canes Venatici (hunting dogs) of a neighboring constellation, or of the bears of Ursa Major and Ursa Minor.