The most usual common name is the Malaysian or Malayan jungle nymph, often just shortened to jungle nymph.

Jungle Nymph (Heteropteryx dilatata)

In the exoskeleton category, there's amazing stuff like the Heteropteryx dilatata (nonliteral translation: humongous terrifying greenish monster bug).

The Spiny Stick Insect (Heteropteryx dilatata) of Malaysia does not reach the extreme lengths of its cousins, the body reaching up to 16 cm (6.3 in) long, but it is much bulkier.