The pegomastax stole my rocket launcher... be careful with these little guys, they appear out of nowhere.
Pegomastax
The Pegomastax is a small herbivore popular among farmers. The Pegomastax has an exceptional skill of gathering seeds and berries, while also able to gather rare ingredients such as Rare Flowers and Rare Mushrooms. While it is relatively weak, this small dinosaur will become quite agressive if provoked.

How to survive, fight, and kill a wild Pegomastax, from players who have done it.
Always have mejos on your last slot when on foot/building etc, that way it wont steel anything decent and also it will start to take it so you will have a tracker on it for when its hanging around.
GUYS!
when while i was gliding with archeo HE JUMPSCARE ME! but my last slot was 100x mejo it tamed him
yes now i have a thief without doing anything to him
This little bugger stole my level 240 thorny dragon cryopod while I was teaching my friend how to raise a baby dodo. It proceeded to run into a high level, alpha raptor and die. Wow.
On ARK MOBILE these guys can't actually be found on the Island itself. It can only be found in dungeons as the eerie pegomastax.
They stealing my medical brews before I can go to the Boss in the dungeon, I could never find the ont that stole them before it decomposes😭😭
This can steal everything except yo girl.
It has negative rizz.
To anyone who said they’re only in dungeons on mobile.
BEWARE!
Just encountered one while I was taming ang killed me.
Beach. Yeah I mean I was on the beach…
This creature, the Pegomastax, is available on many islands and is typically aggressive because of its desire for peeking at your inventory. When it sees something it wants, it takes it, but they are easy to knock out and kill because they have a very low torpor tolerance.
…
This creature, the Pegomastax, is available on many islands and is typically aggressive because of its desire for peeking at your inventory. When it sees something it wants, it takes it, but they are easy to knock out and kill because they have a very low torpor tolerance.
Yours truly,
Excellent Explanations
They'll steal everything but your affection. Thank God it prefers stuff in your last hotbar slot. Put crap in there and laugh as it runs off thinking it's very clever.
Me sees Pego for first time: ooo cool!
Pego:go away
Me: gives anything to tame Pego
Pego:Imma just steal this girls stuff
Pego: takes stuff and runs off
Me:HEY YOU HAVE VIOLATED THE LAW!
Pego:throws stuff off cliff
Me:you little shit...
Pego:hah you thought you stood a…
Me sees Pego for first time: ooo cool!
Pego:go away
Me: gives anything to tame Pego
Pego:Imma just steal this girls stuff
Pego: takes stuff and runs off
Me:HEY YOU HAVE VIOLATED THE LAW!
Pego:throws stuff off cliff
Me:you little shit...
Pego:hah you thought you stood a chance!
This guy literally stole my wall and wen I say I screamed for 30 minutes I mean it
Extremely dangerous to your items kill on sight
Bro these…things are annoying they can very important things from you INCLUDING GUNS!!!!. Hard to tame too
They’re all over the place on the island, ARK ultimate.
They suck. No noobing around them.🤗🤣
Unless you want to be like me…
Honestly I accidentally tamed about 50 if these. Definitely run away when you see one!
Many if not all ground mounts don't protect you from being robbed, so while I used to argue that a fast raptor is as good as a bird you'll have an empty inventory when you get there soooo I guess the fun's over
This guy is the reason to not take cryopods in the beach/redwoods
If you’re tired of getting robbed of gear try this. Put spoiled meat as your last item in your hotbar and carry a few stacks of meat. They’ll typically take your spoiled meat since it’s the last item and you’ll replace it over and over.
I was an adventurer like you till this guy stole my stuff