I hate these things I hate Spiders and these ones are REALLY big! Not only that, but I'm level 45 and sometimes they STILL aggro, rarely, but yes, they are aggresive, they scowl at me with their icky 8-eyed faces... ew!
I killed one of these a week or two ago when someone trained it to the zone. It conned even to me at lvl 20, and poisoned me. I lived, but it was a difficult kill. Dropped 4 spider silks if I am not mistaken.
I could have sworn this thing was level 24 or 25 the other day. High blue to me at 26.
Oh... this creature and the undead froglok don't come out of the water, so fear keeps the two of them running back and forth, well within range of anything you want to do to them.