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Ruschel, T.P. 2017. Seven new species of the cicada genus Guyalna Boulard & Martinelli, 1996 (Hemiptera: Cicadidae: Fidicinini) with a re-description of the type species . Zootaxa. 4281, 1 (Jun. 2017), 246–279. DOI:https://doi.org/10.11646/zootaxa.4281.1.25.