What summer cnstellation is half man and half scorpion?

Answer 1

There is no such constellation or creature in Greek mythology. The "Scorpion Man" is an Akkadian myth.

The only Scorpion in the sky is that of Scorpius (Scorpio), which is just a plain scorpion. In myth, it was sent either by Artemis or Apollo to kill Orion after he boasted that he could kill any creature on earth.

In versions where Artemis sends it, the two kill each other but the battle was so lively that it caught Zeus' attention and he placed both in the sky.

In the version where Apollo sends it, the Scorpion is actually created by Gaia at Apollo's request and subsequently killed by the skilled Hunter (who was later accidentally killed by Artemis) and placed in the heavens by Apollo.

Answer 2

There is no such constellation.