Wow! Those things scare me. I think I know the variety you're talking about; they're bigger than the tu fong, right? I'm assuming the tu fong is the one pictured below. I see others that do not have the yellow head, with some having what looks like a dark orange stripe on their body and orange on the face. They must be the hu tou fong you're referring to. I couldn't find a picture of one.

In any case, as much as I'd like to be there and help out with the extraction, I feel that in the name of scientific discovery I can play a better role by staying about 5K away with a cold beer to determine just how far the human voice can project itself when stung by one of these suckers.

Can you set up your camera on a tripod, pointed at the next, then record remotely from the safety of your home?