Von Ellenrieder, N. & Garrison, R.W. (2008) Oreiallagma gen. nov. with a redefinition of Cyanallagma Kennedy 1920 and Mesamphiagrion Kennedy 1920, and the description of M. dunklei sp. nov. and M. ecuatoriale sp. nov. from Ecuador (Odonata: Coenagrionidae). Zootaxa, 1805 (1), 1–51.