I saw this insect in Cuc Phuong National Park, Vietnam. It was approximately 10cm long and I think the green thing in its formidable mandibles is something is was carrying/eating. I'd very much appreciate a positive ID - this forum hasn't let me down yet!!
Doh! How stupid of me - didn't spot that it had 4 pairs of legs not three (although the anterior pair look very thin, think I may have thought they were antennae, are they sensory?). You wouldn't think I'm a biology teacher eh? I have seen one of these before come to think of it, in the Amazon but it had MUCH longer pincers/pedipalps so I didn't recognise it. What do you think it was eating? Was bright green and there were a lot of grasshoppers about so maybe one of them?
Thanks so much for a positive ID
Have done some more research and it seems that the front legs that fooled me ARE sensory and not used for walking!! And it appears this guy is a member of the order Thelyphonida hence his dissimilarity to the whip spider I'd seen previously in the Amazon (by the looks of it a member of the order Amblypygi). Thanks for putting me on the right track - great to know