They are supposed to be tropical. The family are parasitiods of ants, one of the few groups to target ants. Each species specialises in a genus of ants.
Wonderful little wasp! These guys are quite tiny so you did a very nice job. Agree with Brian about the sig. and maybe it's just my monitor, but I find them a bit warm.
Thanks Douglas , Denis, Michael, Harold , twistedpuppy, Brian, Paul and rocco61
Harold: I found it in HK, it is prefect for Macro but... due to it large breast, it is hard to fit the hold wasp into DOF ( and I failed >.<
LordV, Paul and rocco61 : yeah~ I agree my signature is distracting but it seems it would be better to add a un-removable signature....(just found one of my photo is used without inform me by a site last week )
Paul : yes, I also think this set of photo is a bit warm and the lighting is not good
)