Scorpius in Myth

In Greek Mythology, Scorpius was a giant scorpion sent by Gaia to kill Orion. Gaia, or Mother Earth, was angered when Orion, the hunter, threatened to kill all the beasts of the earth.

Scorpius & Orion are at opposite sides of the sky. The scorpion can never catch the hunter because one sets as the other rises. At the same time, the scorpion is being chased by the archer Sagittarius whose arrow is pointed straight at its heart. Scorpius dominates the southern summer sky while Orion dominates the winter sky.

References:

Orion and Scorpius Constellations
Skorpios
Scorpius