Laidlaw, F. F. A list of the dragonflies recorded from the Indian Empire with special reference to the collection of the Indian Museum. Part II. The family Agrioninae. A. The sections Podolestes, Platycnemis, Platysticta and Protoneura. Records of the Indian Museum: 13 (6): 321-348, figs. 1-7, incl. pl. 13-15. (1917).