Guyalna Boulard & Martinelli, 1996

SANBORN, ALLEN F, 2020, Eight new species and three new records of Neotropical cicadas (Hemiptera: Cicadidae) from Venezuela, Journal of Insect Biodiversity 16 (1), pp. 6-37 : 10-11

Genus Guyalna Boulard & Martinelli, 1996

Guyalna Boulard & Martinelli 1996: 20 .

Type species. Fidicina bonaerensis Berg 1879: 140 . (Argentina)

Remarks. This genus was erected as part of a taxonomic key ( Boulard & Martinelli 1996) leading to confusion in the placement of many species with the very similar genus Dorisiana Metcalf, 1952 . The first complete generic description was provided with a revision of the genus ( Sanborn 2016c). Guyalna can be distinguished from other Venezuelan Guyalnina by a head width that is as wide or slightly wider than the mesonotum, eyes extending slightly beyond the anterior pronotal angle, parallel radial and radiomedial crossveins in the fore wings, male opercula that roughly form a right triangle, and timbal covers with a rounded anterior apex and a ventral margin that is parallel to the long body axis. Dorisiana is the most similar genus to Guyalna but species of Guyalna can be distinguished by a head that is as wide or wider than the mesonotum, eyes that extend slightly beyond the lateral edges of the pronotum, the timbal cover with a rounded apex, a ventral margin of the timbal cover that is parallel to the long body axis, and the longer lateral lobe of the uncus in species of Guyalna ( Sanborn 2016c) . The remaining genera of the subtribe currently not known to inhabit Venezuela can be distinguished as described in Sanborn (2016c).

Distribution. Since the genus was introduced including two species, the genus has become one of the most diverse of the Fidicinini genera with species being reported from much of the Neotropics. Species of the genus are represented in 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; Dorval et al. 2011; Sanborn 2011a; 2011b; 2013; 2014; 2016a; 2016c; 2018; 2019a; 2020; Sanborn & Maes 2012; Maes et al. 2012; Sanborn & Heath 2014; Gogala et al. 2015; Ruschel 2017; Dias et al. 2018).