Yellow-headed Spider-hunting Wasp

Definitely Pompilidae. I don't know the group well enough to offer any further advice on identification. Orchid dupe wasps are ichnuemonids, and there are other orchid wasps (usually male thynnine Tiphiidae) which are tricked by the orchid to think that the orchid is a female wasp and they thus visit the orchids and serve as pollinators.

You IDed this one as an Ichneumonidae. Maybe my eyes see different things, but I don't think it is the Orchid Dupe Wasp. The hindlegs are yellow, not dark/black. I am pretty sure it is a Pompilidae. What do you think? http://www.brisbaneinsects.com/brisbane_ichneumonwasps/OrchidDupeWasp.htm http://www.pbase.com/image/26007517

Pompilidae/Spider-hunting wasps. Could be/looks like Leptodialepis bipartitus, a common species in Asia. Please, verify!! Specially the range! http://www.thailex.asia/THAILEX/THAILEXENG/lexicon/Spider%20Wasp%20(Pompilidae%20sp.).htm http://www.inaturalist.org/observations/117305 http://insectahk.com/hymenoptera/leptodialepis_bipartitus.html http://www.flickr.com/photos/29954808@N00/7953916002/