Easiest and safest way to tame this is to lure it under water. They stop aggro and you can tame as you please. Just make sure you come up for air every once in a while. Also be sure the water is deep enough.
Full Ghillisuit, bug repellent, and balls of steel because these are scary to tame! They have the taming slot right behind their head about where the saddle would normally sit. Must approach from behind and only approach when feeding, stay away otherwise
Not exactly the best combat mount, slow, stamina isn't the best, a little squishy. But a few high levels of these on base defence are pretty good. Put a few in the inner parts of your base (along with the spiders to slow them down) and the will have your enemies armour being melted in seconds!
Be extremely cautious when taming these guys can destroy all ur armor with one spit. I also don't suggest attacking them bc that will break ur weapons real fast. If u r in a cave either avoid it or dodge it's spit while shooting it. It is a passive tame that requires spoiled meat or broths of enlightenment. You need to use bug repellent when taming it and I suggest also wearing gillie for extra safeness. Once tamed they are best used as turrets bc they don't have great stats and they have a turret mode after all why not use it?