Giant praying mantis.
I mean, it's a good description. It preys on things, and its big, and its a mantis.
Just pray it isn't a high level if you see one and you aren't ready...
The leap is as big as the U.S. President's net worth...

I can tell you from experience that in fleeing this bug you only need 1 tranq. Yep i shot that thing into my tribemates knee and was able to escape at a brisk pace as the mantis ate him

If you want to find a Dino that is cool but a pain to tame, the mantis is for you

Give it a whip to hold it has a great visual bug (accidental pun also thus may be fixed)