A taxonomic synopsis of South American Cyanogomphini Carle with description of Cyanogomphus angelomachadoi sp. nov. from the Cerrado of Brazil (Odonata: Gomphidae)
Author
Pinto, Ângelo Parise
Author
Almeida, Marcus Vinícius Oliveira De
text
Zootaxa
2016
4078
1
journal volume
46773
10.11646/zootaxa.4078.1.6
598cb955-c4b7-4c2b-8c74-6ee0348c7f7e
1175-5326
270853
3D0D79C2-2583-47F4-BC01-5CF347614B44
Tibiagomphus uncatus
(
Fraser, 1947
)
LSID urn:lsid:zoobank.org:act:4A858689-3BB8-4F35-B74F-9313F7FF2E6E (
Figures 2
F, 3D, 4F, 5C–D, I–L, 7M–
O
,
8I
–J, 10F, 13)
Cyanogomphus uncatus
Fraser, 1947
: 437
–439, figs 1a–c (description of ♂
holotype
and allotype,
ARGENTINA
. Misiones Province: Iguazú Department, Puerto Bemberg,
12–29.I.1945
, Hayward, Willink & Goldbach leg. in IFML, illustrations of caudal appendages in ventral, dorsal and lateral views of ♂
holotype
;—
Belle (1966: 29, 31, comparison with
C. waltheri
)
;—
Belle (1970: 14, 21, 29–30, figs 26, 52, pl. Va, comparison with
A. tumens
and
Ebegomphus
spp., illustrations of synthorax, S
8–10 in
ventral view, and photo of the wings of ♀ from Rio Grande do Sul State,
Brazil
)
;—
Belle (1972: 219, 221, figs 5–6, illustrations of ♀ subgenital plates from Nova Teutônia village, Santa Catarina State and comparison with a ♀ from Rio Grande do Sul State,
Brazil
)
;—
Paulson (1977
: 175
, mention to
Argentina
and
Brazil
, possibly based on
Belle 1970
);—
Belle (1980: 153–155, in part, specimens from Misiones Province,
Argentina
, and Nova Teutônia village, Santa Catarina State,
Brazil
, comparison with ♂
holotype
and allotype, and with
C. waltheri
)
;—
Jurzitza (1981: 117, record from Parque Nacional Iguazú, Misiones Province,
Argentina
)
;—
Davies & Tobin (1985: 26, mention)
;—
Watson & O’Farrell (1985
: 501
, mention);—
Carle (1986: 307–308, comparison with
C. waltheri
)
;—
Garrison (1991: 17, mention)
;—
Rodrigues
Capítulo (1992
: 58
, in part, record from Misiones Province,
Argentina
);—
Steinmann (1997: 104, mention)
.
Tibiagomphus uncatus
(
Fraser, 1947
)
:—
Belle (1992a
: 1–3, comb. nov., fixation of
Cyanogomphus uncatus
Fraser, 1947
, as
type
species of
Tibiagomphus
by original designation);—
Bridges (1994:
III.51
, VI.8, VII.241,
VIII.70
, mention)
;—
Belle (1995
: 35–36, figs 15, 23, illustrations of ♀ dorsal detail of occipital plate, postocciput, postoccipital suture and occipital foramen in posterior view, occipital plate in dorsal view, comparison with
Brasiliogomphus uniseries
Belle, 1995
);—
Belle (1996
: 316, in part, mention of ♀ cited in
Belle 1970
);—
Garrison
et al.
(2006
: 71, 129–130, 328, 337, figs 390, 728, 731a, b, in part, illustrations of wings and caudal appendages in lateral view from ♂ from Misiones Province,
Argentina
);—
Heckman (2006
: 649–650, fig. 3.2.778, in part, key, reproduction of illustration of ♀ subgenital plate from
Belle 1972
from Santa Catarina State,
Brazil
, reproduction of illustrations of ♂
holotype
postfrons from Rodrigues Capítulo 1985);— von
Ellenrieder & Muzón (2008: 61, in part, record from Misiones Province,
Argentina
)
.
FIGURE 11
. Female habitus of Cyanogomphini in lateral view. A–B.
Cyanogomphus angelomachadoi
sp. nov.
, A. Paratype (Brazil. MG: Parque Nacional da Serra do Cipó, DZRJ 1448), B. Additional specimen (Brazil. MG: Serra do Salitre, ABMM); C.
Cyanogomphus waltheri
Selys, 1873
(Brazil. RJ: Reserva Ecológica de Guapiaçu, DZRJ 2495); D.
Tibiagomphus noval
(Rodrigues Capítulo, 1985)
(Brazil. RS: Jaguarão, MNRJ). Scale bars = 10 mm.
Material examined (
7 ♂
).
BRAZIL
. Paraná State:
1♂
, União da Vitória municipality [
26°13’48”S
,
51°05’09.60”W
,
761 m
a.s.l.],
I.1952
, V. Stawiarski leg. (
MNRJ
22064); Santa Catarina State:
1♂
, [Seara municipality], Nova Teutônia [village,
27°09’38.00”S
,
52°24’58”W
,
355 m
a.s.l.],
II.1948
, B. Pohl leg. (
MZSP
);
1♂
, same data but
18.XI.1948
, [Richard von Diringshofen leg.] (
MZSP
);
1♂
, same data but
19.XI.1948
(
MZSP
);
2♂
, same data but
24.XI.1948
(
MZSP
);
1♂
, same data but
28.XI.1948
(
MZSP
).
PARAGUAY
. Itapúa department:
1♂
, San Benito [Agricultural School,
26°49’53.24”S
,
55°43’32.73”W
,
202 m
a.s.l.] / Pastoreo,
21.I.1980
, Linda Strickman leg. (D. R. Paulson collection, Seattle, WA,
USA
, not examined). Specimens at
MZSP
all ex-Richard von Diringshofen Collection under species number 83.
Type
repository.
Holotype
♂ and allotype ♀ by original designation in Instituto Fundación Miguel Lillo, Tucumán,
Argentina
(
IFML
, not examined).
Measurements.
Males (n = 7). Total length (incl. caudal appendages) 45.1–49.7; abdomen length (excluding caudal appendages) 32.3–36.4; head maximum width 6.2–6.5; Fw length 28.0–30.6; Hw length 26.8–29.7; Fw maximum width 5.7–6.8, in Hw 6.8–7.7; pt length
2.9–3.5 in
Fw,
3.2–3.9 in
Hw; length of metathoracic femur 7.3–8.7; metathoracic tibia 5.9–7.0; length of S9+
10 in
lateral view 3.4–4.0; total length of cercus in lateral view 1.8–2.1. Ratio cercus length / maximum width 0.25–0.30.
Larva.
Unknown.
Diagnosis
. This dark species is diagnosed from its congener and from
Cyanogomphus
under
T. noval
.
Distribution
. Misiones Province in
Argentina
,
Paraguay
in Itapúa department, and Paraná to Santa Catarina States in
Brazil
, in Parana dominion in Araucaria and Parana Forest biogeographical provinces (
Fig. 13
).
FIGURE 12
. Map of southeastern South America with distribution records of
Cyanogomphus
Selys, 1873
, species. Colored areas correspond to the Neotropical regionalization of biotic elements by Morrone (2014). Abbreviations: MI, Misiones Province, Argentina; BA, Bahia; GO, Goiás; MG, Minas Gerais; MT, Mato Grosso; RJ, Rio de Janeiro; RS, Rio Grande do Sul; SC, Santa Catarina, and SP, São Paulo for Brazilian States.
Biological and ecological data.
Based on sites where adults have been collected, this species is associated with forested areas at 188–781 meters of elevation.
Remarks
. Belle’s (1980) paper contributes significantly to the identity of this species, even considering the poor condition of the
type
series. Besides the male
holotype
and allotype, Belle examined three other Pampean males, one from Entre Rios Province,
Argentina
(
type
locality of
T. noval
) and two from distinct localities in
Uruguay
, as well as two other males from Parana dominion (Atlantic Forest) of Misiones Province in
Argentina
(
type
locality of
T. uncatus
), and Nova Teutônia village in Santa Catarina State,
Brazil
, making a total of six males. He recognized several differences among the Pampean southern specimens from the typical northern specimens of Argentinean and Brazilian Atlantic Forest (
Belle 1980, p. 154–155
) including the paler color, shape of postfrons, smaller size, and more slender hamule, all of which agree with
T. noval
as described by Rodrigues Capítulo (1985) from Entre Rios Province. We examined seven males from the northern part of its range, including material from Nova Teutônia and eight males from southern parts of its range, including material as far south as Entre Rios Province. Based on Belle’s (1980) description of the
holotype
and comparison with other specimens from its northern range in
Argentina
and
Brazil
, the specific characters cited for
T. uncatus
are consistent. Thus we consider the darker specimens from Parana dominion to be
T. uncatus
and the paler specimens from Pampean province to be
T. noval
(
Figs 13
). Most males of
T. uncatus
lack a pale spot or stripe over the dark brown mesepisternum such as are shown by the
holotype
(
Belle 1980, p. 153
). A few
T. uncatus
have a small elongated pale spot corresponding to the first antehumeral stripe, while males of
T. noval
always have pale spots on the mesepisternum similar to the pattern illustrated for females of
T. uncatus
(
Belle 1970, fig. 26
) and
T. noval
(
Garrison
et al
. 2006
, fig. 727, cited as
T. uncatus
).
Belle (1980, fig. 13)
also illustrated an unusual posterior hamule of
T. noval
from
Uruguay
(cited as
T. uncatus
) with additional spines along the anterior margin, similar to one of the male
T. uncatus
we examined that has several additional differently sized spines, including minute ones, along the internal margin (
Fig.
5
I).
Even though we examined no female of
T. uncatus
, the homogeneous darker general color diagnoses the sex of this species from
T. noval
(a female of
T. uncatus
from Misiones in RWG collection agrees with the darker pattern described here, RWG pers. comm.) as well as by its more northern allopatric distribution as discussed above.