Purple Boss Wasp

There are 2 tameable creatures with this look.

Purple Boss Wasp
Can Be Tamed
Thal'darah Grove, Stonetalon Mountains
Retains its original name after taming.
Volux flies high over the grove but can be reached from the top of the tower as it flies past. Note that Volux will phase out and become unavailable once you advance the zone quest chain past the point at which the bomb drops - for Alliance this is when you accept the quest Last Ditch Effort.
Can Be Tamed
86Zul'Gurub (Dungeon)
Stays larger than most tamed wasps.