They drop Burnt out Lightstones and Greater Lightstones also, I still use my GL. These are just south of the river (bridge). Follow the river west and then turn left and go south, they spawn in this path like area(can find crawlers and such there, and the occasional orc, mostly snakes and the spiders though). If none are there, kill the mobs in that area and they will spawn. This quest has worked fine the three times I've done it.
Edit: The path area where the NPC is (Dark Elf I believe or Some kind of elf, never can tell which of the other elves it is.)
I'm running through the quest for the first time since they changed nek around. I'm finding that the greater wisps are generally in 3 spots, and never more than 3 at a time are up. I'm boxing a HL tracker, so I am pretty sure about this. The first spot is in the halflinf camp, always toward the southern part. The second spot is near the MM zone line. The third and final spot is west of that zone line, where there are some large forest crawlers.
Has anyone seen one of these in Nektulos forest since the zone graphics were changed to accomodate the new expansion? I have been trying to do the newbie quest for the wispglow earring, but have not been able to find any.
The a Greater Wisps are there and quite near the entrance fron West Commonlands, but killing them didn't update the quest. Will have to come back to it when it is fixed