may be ハラヒシバッタ.
I have never seen this kind of grasshoppers before. It's a small sized species of about 2cm in length. Thank you Kenneth of hkwildlife to help help identifying this 眼優角蚱 (Eucriotettix oculatus)
The bug is on top of the leaf on top of the stick.
Tetrigidae is a family in the order Orthoptera, that also includes similar families such as crickets, grasshoppers, and katydids (US) or bushcrickets (UK). Species within the Tetrigidae are variously called grouse locusts, pygmy locusts, groundhoppers or pygmy grasshoppers.