A review of the exclusively South American components of the genus Psaironeura Williamson shows that only 2 spp. are involved, P. bifurcata (Sjostedt), and P. tenuissima (Selys). P. machadoi De Marmels is considered a synonym of P. bifurcala. Illustrations of the variability within the appendages, keys to S 3, and comments on the taxonomy of the group are included.


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Societas Internationalis Odonatologica

R.W. Garrison. (2004). An analysis of the Psaironeura tenuissima complex, including synonymy of P. machadoi De Marmels with P. bifurcata Sjöstedt (Zygoptera: Protoneuridae). Odonatologica, 33(1), 83–89.