Tetraponera rufonigra
Tetraponera rufonigra, is a species of ant belonging to the subfamily Pseudomyrmecinae. It is distributed across Asia, and Africa. Commonly called the Bi-coloured Arboreal ant, they are arboreal and build small nests which are excavated holes usually in dried parts of trees. They are active hunters and hunt small insects. They have a well developed sting and when stung can cause allergic reactions in human beings. The ant is known as "Hath polayaa" in Sinhala.