It is a large slender damselfly with bottle-green eyes. Its thorax is bluish-black on dorsum and sides are pale blue with a black stripe on the hinder border of the mesepimeron. Abdomen is black with pale yellow on the lower parts of sides. Segments 3 to 6 to have narrow yellow basal rings. Remaining segments are unmarked. It is bigger than any other known species of this genus. Female is similar to the male.[5][6][7][8]
^David V. Raju, Kiran C. G. (2013). കേരളത്തിലെ തുമ്പികൾ [Dragonflies and Damselflies of Kerala] (in Malayalam). Kottayam, Kerala, India: Tropical Institute of Ecological Sciences.
^K.A., Subramanian; K.G., Emiliyamma; R., Babu; C., Radhakrishnan; S.S., Talmale (2018). Atlas of Odonata (Insecta) of the Western Ghats, India. Zoological Survey of India. p. 52. ISBN9788181714954.