Laidlaw, F.F. 1921. A List of the Dragonflies Recorded from the Indian Empire with Special Reference to the Collection of the Indian Museum---Suborder Anisoptera (4). Records of the Zoological Survey of India. 22, 2 (Mar. 1921), 75–91. DOI:https://doi.org/10.26515/rzsi/v22/i2/1921/163516.