Eight new species and three new records of Neotropical cicadas (Hemiptera: Cicadidae) from Venezuela
Author
SANBORN, ALLEN F
0000-0001-5729-7106
Department of Biology, Barry University, 11300 NE Second Avenue, Miami Shores, FL 33161 – 6695, USA
asanborn@barry.edu
text
Journal of Insect Biodiversity
2020
2020-04-08
16
1
6
37
http://dx.doi.org/10.12976/jib/2020.16.1.2
journal article
269230
10.12976/jib/2020.16.1.2
415d3a39-d905-4fac-8430-19c0b5d9a878
8376421
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).