These can be up to level 68. This is back in the room where the primal spawns, I didn't go wandering around the caves looking for more to con so I don't know if it's just this area or what.
Also, the earring is not attunable (as per BraeTT post), it's No Trade (No Drop). I haven't seen the ring yet though.
If you plan on kiting here keep in mind that while they are not KoS, they are social and warping can be really really bad sometimes. I've noticed the worst warping when these are being root rotted and root breaks or when running up along one of the cave walls. I usually rot the first one or two to give me some room to work. That's the most nerve wracking part but once you have a few cleared out the camp is easy and great xp.
Definitely watch out for the wandering 'shapeshifter'. It's a yellow con (to lvl 70) and is usually a lizard, spider, or bug while he is wandering around. As such, his name will be different based upon his form. He hits in the mid/high-2Ks and will also (for added fun) agro on pets. So either suspend/kill your pet or /pet guard and summon companion.