GEORGE TOWN: These large ants of about 1cm long are unlike other ants; the black and red bi-coloured arboreal ants have a sting at the end of its abdomen.
They can sting repeatedly and inject venom that can cause swelling and blisters that last for days, and potentially anaphylactic shock which can cause fainting spells, vomiting and difficulty in breathing if you have allergies.
