Three new genera from South America and some taxonomic changes in Gyponini (Insecta: Hemiptera: Cicadellidae)
Author
Gonçalves, Clayton C.
41E6BE64-C8CD-4BAF-86AA-272CF5BE88C5
Laboratório de Entomologia, Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Caixa Postal 68044, Rio de Janeiro, 21941 - 971, RJ, Brazil. Departamento de Zoologia, Universidade Federal do Paraná. Caixa Postal 19020, Curitiba, 81531 - 980, PR, Brazil. Departamento de Entomologia, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 20940 - 040, RJ, Brazil.
clayton.correa.goncalves@gmail.com
Author
Domahovski, Alexandre C.
0B988BD5-599B-42CE-ADCB-50FC813E104E
domahovskiac@yahoo.com.br
Author
Mejdalani, Gabriel
DE1C60FA-FB28-4F73-B316-18E901D5783D
mejdalan@acd.ufrj.br
Author
Takiya, Daniela M.
7E88BC1C-8D6A-411D-B97B-52E64EF5BA70
Laboratório de Entomologia, Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Caixa Postal 68044, Rio de Janeiro, 21941 - 971, RJ, Brazil. Departamento de Zoologia, Universidade Federal do Paraná. Caixa Postal 19020, Curitiba, 81531 - 980, PR, Brazil. Departamento de Entomologia, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 20940 - 040, RJ, Brazil.
takiya@acd.ufrj.br
text
European Journal of Taxonomy
2021
2021-05-18
750
70
93
http://dx.doi.org/10.5852/ejt.2021.750.1363
journal article
6624
10.5852/ejt.2021.750.1363
20b63e1c-aaa6-4477-9a94-d7acd27c44ed
2118-9773
4770564
511C6C89-69B0-468F-B121-1E4210D6E216
Marganana
(
Marganana
)
mexicana
DeLong & Freytag, 1963
Fig. 7
Marganana
(
Marganana
)
mexicana
DeLong & Freytag, 1963: 260
, pl. I fig. 4, pl. II figs 6–11, 24.
Freytagana gibsoni
DeLong, 1975: 409
; figs 1–8.
Syn. nov.
Material examined
Holotype
MEXICO
•
♂
;
Mexico
,
Puebla
,
Necaxa
;
27 Oct. 1945
;
DeLong
,
Hershberger
,
Stone
and
Elliot
leg.;
OSUC-0169614
.
Other material
MEXICO
•
♂
,
holotype
of
Freytagana gibsoni
;
Mexico
,
Rte.
190, 28 mi.
E of Mexico City
;
28 Jul. 1965
;
P.H. Freytag
and
L.P. Gibson
leg.;
OSUC-0158615
.
Remarks
Margana
was erected by
DeLong (1942)
to accomodate the
type
species,
Ponana marginifrons
var.
suilla
Ball, 1935
, from
Arizona
,
USA
. A few years later,
DeLong (1948)
proposed a new name for the genus,
Marganana
, because the previous name had already been taken by a genus of
Lepidoptera Linnaeus, 1758
.
DeLong & Freytag (1963)
erected a new subgenus,
Declivana
and two new species,
Marganana
(
Marganana
)
mexicana
from
Mexico
and
Marganana
(
Declivana
)
equata
from
Guyana
. According to
DeLong (1942)
and
DeLong & Freytag (1963)
,
Marganana
differs from other
Gyponini
genera by the following characteristics: (1) crown short and broad, with transversely striated surface; (2) ocellus closer to median line than to adjacent eye; (3) transition crown-face with thickened margin and carinate; (4) face short and broad; (5) pronotum broad and slightly wider than head; (6) forewing long and narrow, with venation normal to reticulated, with veins wide, conspicuous, and dark margined, and appendix developed; (7) hind tibia without outer secondary setae; and (8) aedeagus simple, without basal processes.
Fig. 7.
Marganana
(
Marganana
)
mexicana
DeLong & Freytag, 1963
.
A–H
. Holotype, ♂ (OSUC-0169614).
A
. Dorsal habitus.
B
. Lateral habitus.
C
. Labels.
D
. Pygofer, valve, and anal tube, lateral view.
E
. Subgenital plate, ventral view.
F
. Style, lateral view.
G
. Aedeagus, posterior view.
H
. Aedeagus, lateral view. –
I–P
. ♂, holotype of
Freytagana gibsoni
DeLong, 1975
(OSUC-0158615).
I
. Dorsal habitus.
J
. Lateral habitus.
K
. Labels.
L
. Apical portion of pygofer, lateral view.
M
. Subgenital plate, ventral view.
N
. Style, lateral view.
O
. Aedeagus, posterior view.
P
. Aedeagus, lateral view. Scale bars: A–B, I–J = 2.0 mm; D–H, L–P=0.5 mm.
The monotypic genus
Freytagana
was erected by
DeLong (1975)
to accomodate the
type
species,
Freytagana gibsoni
DeLong, 1975
, from
Mexico
. According to that author,
Freytagana
differs from other gyponines by the following set of characteristics: (1) crown short and broad, with anterior and posterior margins almost parallel; (2) ocellus closer to median line than to adjacent eye; (3) transition crown-face distinct and thick; and (4) forewing long and narrow, with venation reticulated, and slight appendix.
Based on the original descriptions of the genera and a detailed study of the
holotypes
of the two included species, we conclude that there are no characters that distinguish
Freytagana
from
Marganana
.
Therefore, we suggest that
Freytagana
be treated as a junior synonym of
Marganana
. In addition, considering the distribution data (the
holotype
of
F. gibsoni
and several
paratypes
of
M. mexicana
are from the same locality –
Mexico City
), forewing venation, and male terminalia (
Fig. 7A–H, I–P
), we concluded that
holotypes
of
F. gibsoni
and
M. mexicana
are conspecific, so that the former should be treated as a junior synonym of the latter. We note that the
holotype
of
F. gibsoni
has its aedeagus shaft damaged and twisted, besides being strongly bent ventrally at apical half. This may be the reason why DeLong did not treat them as the same species.