The yellow marmorated stink bug (Erthesina fullo) is a species of stink bug belonging to the family Pentatomidae. It is the most widespread plant-feeding pest in Asia.
Be careful with this stink bug! It hides a "secret weapon" in its abdomen. It sprays a very smelly gas, and if it splashes into your eyes, it will cause irritation. You never know when it will happen. But so far I'm fine. Nothing happened when I spotted the stink bug on the starfruit tree in my yard this afternoon.
This is another entry I submitted for the daily #monomad challenge.
These photos are my own, taken with POCO X3 NFC smartphone + external macro lens.