Popped for me last night on Prexus outside the cave to the far right corner of the grey ent(coming out of the grey) Conned blue to myself, 53 necro, dropped really fast didn't seem very reistant.
Sneakster popped in first room of southern-most cave (for me, at least).
I tend to think all the mobs of one race share loot tables between all their named's, and any named of a race can spawn in place of any non-named of same race.