The females of E. eiseni and E. semicirculare are described, illustrated, and distinguished from females of all other known Mexican Enallagma spp. Brief notes on their ecology are also provided.

Odonatologica

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Societas Internationalis Odonatologica

R.W. Garrison, & M.L. May. (1988). The females of Enallagma eiseni Calvert and E. semicirculare Selys, with a key to the females of the Mexican members of the genus (Zygoptera: Coenagrionidae). Odonatologica, 17(2), 99–106.