Hello all, i tamed Terrorpene today and im here to share some info with you.
First of all, the taming itself. Terrorpene does a spell on the target (beam style spell that does 10k dmg per sec). When i tamed it my lvl was (and is lol) lvl 85, with around 96k HP unbuffed.
I did NOT use any haste pots/buffs/etc and when the tame was complete i was left with 20k hp. so yeah....if you arent lvl 84/85 you might need some sort of buffs/pots to make the tame quicker. (haste pots etc)
The spawning time: This isnt 100% accurate, because its only based on what a random guy said on Petopia forums, but according to him and i quote: "i killed terrorpene, and after 6hour(give or take 1mn) i saw it spawn again." So if he was being accurate/truthful, the spawn time is around 6 hours.
Spawn places: From what ive read on Petopia and other websites forums/comments, Terrorpene spawns always on the same area, that area being: South hyjal, in the lava in the front part of the "temple" thingie. To make this more clear ill post a picture of the map, including the spot where i tamed it, and the spot where other people have tamed it.
PS: The Pet/beast is level 81, so keep that in mind before going to try to tame it at 80.
I hope this post is helpful and please forgive me for any English mistakes, since it isnt my main language.
Any doubts/Questions dont hesitate to ask here or via PM.