A new species of the rare ant genus, Leptanilla Emery (Hymenoptera: Formicidae) from Eastern Himalaya, India

Leptanilla ujjalai sp. nov. is described and illustrated from the Neora valley National Park, Eastern Himalaya, India. The new species differs from the Indian congeners in having four teeth on mandibles and an extended flange on anterior clypeal margin, and from others in flagellomers and petiolar characters. Images of holotype and SEM microphotographs of a paratype are provided. An identification key to workers of the Oriental and Sino-Japanese Leptanilla species is provided.