Guyalna Boulard & Martinelli, 1996

Sanborn, Allen F., 2019, The cicadas (Hemiptera: Cicadidae) of Bolivia including the descriptions of fifteen new species, the resurrection of one genus and two species, seven new combinations, six new synonymies, and twenty-eight new records, Zootaxa 4655 (1), pp. 1-104 : 32

Genus Guyalna Boulard & Martinelli, 1996

Guyalna Boulard & Martinelli 1996: 20 .

TYPE SPECIES. Fidicina bonaerensis Berg 1879: 140 . ( Argentina)

REMARKS. The genus was erected as part of a taxonomic key ( Boulard & Martinelli 1996). A revision of the genus has been published recently providing a full description along with the reassignment of several species into and out of the genus ( Sanborn 2016a). Guyalna differs from Majeorona Distant, 1905d that has a head width wider than the mesonotum, with prominent, stylate eyes that extend anteriorly. Species of Proarna Stål, 1864 possess a head that is about as wide as the mesonotum with the eyes barely or not extending beyond the anterior angle of the pronotum, radial crossvein vertically oriented to the radius anterior 2 and radius posterior veins with a radiomedial crossvein that is obliquely oriented, large semicircular male opercula, and triangular or small, curved timbal covers. Dorisiana Metcalf, 1952 is the most similar genus to Guyalna but species can be distinguished by the head being as wide or wider than the mesonotum with eyes not extending beyond the lateral edges of the pronotum, triangular timbal covers, ventral margin of the timbal cover angled dorsally not parallel to the long body axis, and the lateral branch of the uncus does not extend to the same lengths as the species of Guyalna ( Sanborn 2016a) .

DISTRIBUTION. Species of the genus are found over much of the Neotropics including references to Argentina, Bolivia, Brazil, Colombia, Costa Rica, Ecuador, French Guiana, Guyana, Nicaragua, Panama, Paraguay, Peru, Uruguay, and Venezuela ( Metcalf 1963a; Duffels & van der Laan 1985; Boulard & Martinelli 2011; Sanborn 2011a; 2011b; 2013; 2014a; 2016a; 2016b; 2018c; Sanborn & Maes 2012; Maes et al. 2012; Sanborn & Heath 2014; Gogala et al. 2015; Ruschel 2017).