You can use them to fart on your crops to help them grow.

These are the friggin cutest thing ever (in my opinion) to tame and make little chirrup sounds so I would recommend just getting an army of them and putting them inside your personal base (not for Dinos) on a PVE or single player and just chill, very stress relieving to just have a bunch of cuddly moths around you for me. Helps me at least when stressed on ark, not being stressed helps a lot. Pretty random but idk

You know the guy who said it can be used as a lift truck.....

well he knows what he’s talking about. Only pump wieght and you are set to take all those materials out of the base you just raided and putting them in my vaults. 10/10 best cargo transport. Now I got weight mutations because of tlc3

Put a green glow stick on it and fly around as a giant glowbug.

I once was knocking out a rex then it started to attack a lymantria which saved my life due to the rex loosing stamina

On a pvp server the lymantria can be used as a bio weapon, as its toxic attack has a chance to give players and dodos swamp fever.

Since TLC 3 , this creature is breedable. You cannot pick up it's fertilized eggs , so make sure you have a proper breeding area.

You can use this big ass moth as a lift truck inside your base since it can fit through double doors and is very easy to manoeuvre in closed spaces, unlike the Ptera. You can easily move thousands of metal ingots from and Industrial Forge to a Fabri, or loads of stone from a Doed to a Chen bench, etc etc. Its starting weight is quite shitty but you can allocate every single level on it since it’s the only thing you need. This role works particularly well on unofficial servers in where the weight stat is boosted.