Von Ellenrieder, N. and 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 (Jun. 2008), 1–51. DOI:https://doi.org/10.11646/zootaxa.1805.1.1.