Tropical creature (5,6)
(Other definitions for stick insect that I've seen before include "Bug that's noted for camouflage" , "Twiggy type" , "leaf creature?" , "Twig-like creature" , "creature hard to spot in tree" .)
(Other definitions for leaf insect that I've seen before include "Small creature of the order Phasmida" , "Stick-like creature" , "Tropical bug" .)