heteropteryx dilatata.
Kg. Ulu Geroh. (Pt.2)
This perfect specimen is a subadult female. The females grow a lot bigger than this and are much bigger than the males. When threatened, the females will make a loud hissing sound with her small wings, curl her abdomen up over her back (like a scorpion would with it's tail in a striking pose) and move her two rear legs in a scissor like motion to scratch her attacker.
(The reason i handle some of these insects is for size comparison. Please do not pick up or handle any wildlife unless you have a thorough understanding of it or are under the supervision of a professional.)