So there's been mixed information regarding their stealth ability, at least in mobile.

Here's what I have found.

DO NOT REVIVE TAME.

Wild or tame, death removes their stealth ability.

If you're looking to tame, do so without killing it.

Bait it into watervif you can as they will deaggro.

If you have one tamed and it dies for what ever reason, don't use them in caves. You will be attacked.

I believe the same thing applies with the spiders.

More Arthropluera Taming & KO Tips