- I note on the Museum website that they state there are no known allergies to Trigona Carbonaria or stingless bees. Being a beekeeper of honeybees for some thirty years I have had thousands of their stings with little effect. I also have Trigona colonies which I split from time to time. They do not sting but give a nip with their mandibles when in their defence mode, especially when you are pulling their nest apart. I have had red, painful, itchy areas that have lasted a week especially when I have been bitten in the inner elbow area and on the knees. Which makes me think that when they break the skin they have some substance on their mandibles that cause the reaction.