They were on Sonoma last night, in Tram Brittan and in the city of Luna. Was funny as hell in Luna, first thing I did was lure one into the middle of the bank and invised and watched him own all the trammie bank sitters lol. About 4-5 spawned in luna and about the same in brit. No mining was bringing them up, they just spawned out of thin air.
JaF