Börzsöny L., 2013: Polythore koepckei spec. nov. from the Sira Mountains in Peru with remarks on related species (Odonata, Zygoptera, Polythoridae). 4 pp. Spixiana 36(2): 265-268.
 
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Burmeister E.-G., 1985: Perithemis lais (Perty, 1833) aus der Brasilienausbeute von J. B. v. Spix und C. F. Ph. v. Martius (Odonata, Libellulidae). Spixiana 8: 119-