Spawning Crookstringer

[Dullah]

Anyone know how to get crookstinger to spawn, or where he can spawn in lesser fay?

I found him on the south wall once among 5 other wasps, but after camping that area for several days, have been unable to get him to spawn again.

Is there a trick to this like quillmane? Maybe its been changed, or maybe he can spawn anywhere?

Info appreciated!