These things are the bane of my existence. I was doing a perfect 150 allo tame in the redwoods, and I was off gathering prime. I get the notification, “You have tamed Allosaurus, level 150!” Two seconds later I get another notification. “Your Allosaurus level 150 was killed by a 120 Pulminoscorpius.” I run back to the taming spot, and sure enough, there is 4 Pulminos staring at me. I bola’d them and put campfires beneath them, and then lit the campfires. I ensured that they died a slow, painful death.
I don't know why the guy saying they're not affected by Bolas is at the top. I just hit a level 5 wild in the mountain area with a bola right in the legs and it froze in place perfectly, no issues. BOLAS WORK, BUT YOU HAVE TO HIT THE LEGS, THE THIN SKITTERY EASY TO MISS LEGS.
Bola it, shoot it in the head with tranq darts, feed it spoiled meat! A very effective and easy tame. Be careful though, they're hard to see in grassy areas. I was taming a sabertooth once when it came up out of nowhere, I went unconscious before I could even run away. It took me 5 tries to get my stuff back from my dead body because the scorpian was always there. In the end, surpinsgly, my sabertooth survived the taming process and I ended up taming the scorpian right after!
I tamed my eerie male scorpion on ark mobile during the eerie server event inside the poison cave. It was the best choice I ever made as he is now guarding my hatchery.
On mobile I recommend the following for stats if you plan to use a scorpion as a guard.
Speed is good at 230%
Melee at about 500% (just to keep those nasty wild Dinos spawning in your base in line)
Health about 5k (scorpions can be very easily killed if they don’t have good health in them.)