Revision of the genus Sinochlora Tinkham (Orthoptera: Tettigoniidae, Phaneropterinae)
Author
Liu, Chun-Xiang
Author
Kang, Le
text
Journal of Natural History
2007
2007-08-31
41
21 - 24
1313
1341
http://dx.doi.org/10.1080/00222930701437667
journal article
10.1080/00222930701437667
1464-5262
4581439
Sinochlora szechaeanensis
Tinkham
(
Figures 2A, B
,
3F
, J–M, 8A–R)
Sinochlora szechaeanensis
Tinkham 1945
, p 235
–246;
Eades et al. 2006
.
Sinochlora kiangsuensis
Tinkham 1945
, p 235
–246;
Eades et al. 2006
. Syn. n.
Sinochlora gracilisulcula
Shi and Zheng 1996
, p 180
–181;
Eades et al. 2006
.
Syn. n.
Material examined
Three
males, two females,
China
:
Sichuan Prov.
:
Mt.
O’meishan,
Qingyinge
,
800– 1000 m
,
17 September to November 1957
, coll.
Huang Keren
,
Lu Youcai
, and
Zhu Fuxing
(
IZAS
)
;
one male,
China
:
Jiangxi Prov.
:
Jiulianshan
,
Xiagongtang
,
580 m
,
24–30 July 2000
, coll.
Yuan Decheng
(
IZAS
)
;
one male,
China
:
Zhejiang Prov.
:
Mt. Tianmushan
,
29 August 1947
(collector unknown)
;
one male,
China
:
Guangxi Prov.
:
Mt. Maoershan
, 1200–
1080 m
,
25 August 1982
, coll.
Yang Jikun
(
ICAU
)
;
four males, three females,
China
:
Sichuan Prov.
:
O’Mei Mt.
,
1 October 1991
, coll.
Liu Zuyao
,
Wang Tianqi
, and
Yin Haisheng
(
MSIE
)
;
one male,
China
:
Anhui Prov.
:
Huangshan Mt.
,
Wenquan
,
9 October 1980
(
MSIE
)
;
one female, same data as in above but
1 September 1983
, coll.
Bi
,
He
, and
He
(
MSIE
)
;
one male, one female,
China
:
Anhui Prov.
,
Dongzhi
(
MSIE
)
;
three males, two females,
China
:
Henan Prov.
:
Neixiang
,
Getengpa
,
700–950 m
,
5 August 1985
, coll.
Zhang Xiujiang
(
MSIE
)
;
three males, one female,
China
:
Henan Prov.
:
Shangcheng
,
Huangbaishan Mt.
,
1000 m
,
25 October 1984
, coll.
Zhang Xiujiang
(
MSIE
)
;
one male,
China
:
Henan Prov.
,
Neixiang
,
Baoshanman
,
1000 m
,
14 August 1985
, coll.
Zhang Xiujiang
(
MSIE
)
;
one male,
China
:
Henan Prov.
:
Xixia
,
Huangbaian
,
900 m
,
20 August 1985
, coll.
Zhang Xiujiang
(
MSIE
)
;
one male,
China
:
Henan Prov.
:
Tongbai County
,
Tongbai Mt.
,
11 September 2000
, coll.
Liu Zhang
(
MSIE
)
;
two males,
China
:
Hunan Prov.
,
Dayong
,
Zhangjiajie
,
13 September 1988
, coll.
Liu Xianwei
(
MSIE
)
;
one male,
China
:
Hubei Prov.
,
Shennongjia
,
Muyu
,
1200 m
,
29 August 1983
, coll.
Jin Gentao
,
Liu Zuyao
, and
Zheng Jianzhong
(
MSIE
)
;
one female (
paratype
of
S. gracilisulcula
),
China
:
Sichuan Prov.
,
Mt.
O’meishan,
31 July to 6 August 1992
, coll.
Shi Fumin
(
SNUB
)
.
Redescription
Male.
Stridulatory file on underside of left tegmen with 10 undeveloped teeth at the basal part and about 64 normal teeth in the remaining part (
Figure 3F
, J–M). Epiproct bigger, longer, dorsally concave entad, with long black heavy bristles in the ventral surface, and apical area with a pair of relatively longer spine-like lateral processes which are projected dorsad beyond the median tumid area of the tenth abdominal tergum, notch between cambered (
Figure 8
G–R).
Measurements (mm)
Length of body: male 23.0–32.0, female 32.5–33.0; length to apex of ovipositor 32.5–34.0; length to tip of wing: male 49.0–59.5, female 58.5–59.5; length of pronotum: male 5.7–6.5, female 6.5–6.8; length of tegmen: male 44.0–47.5, female 45.5–48.5; largest width of tegmen: male 8.5–10.0, female 9.0–10.0; length of hind wing: male 48.5–52.0, female 49.5–53.5; length of anterior femur: male 9.0, female 8.0; length of median femur: male 12.0, female 12.5; length of posterior femur: male 27.0–32.0, female 28.6–30.5; length of ovipositor 10.0.
Discussion
The type specimens of
S. gracilisulcula
have been damaged. The original description of
S. gracilisulcula
just differs from that of
S. szechaeanensis
in the former having the following apomorphies: small distance between the lateral lobes of male tenth abdominal plate, female subgenital plate slightly broader than long, and with a distinct obtuse-angular notch at the base and basal lateral margins distinctly enlarged. After carefully examining a damaged female
paratype
and the material from O’Mei Mt.,
Sichuan Province
at hand, we found that these specimens somewhat vary to a different extent regarding male tenth abdominal tergum and shape of female subgenital plate. Thus as concerning male tenth abdominal tergum and female subgenital plate, we consider that there lies much morphological variation within the geographical population in O’Mei Mt.,
Sichuan Province
; and the apomorphies mentioned about
S. gracilisulcula
are just not beyond the variation. So we consider
S. gracilisulcula
just as a junior synonym of
S. szechaeanensis
.
When carefully examining specimens from nine different geographical populations:
Sichuan Province
,
Hunan Province
,
Hubei Province
,
Henan Province
,
Anhui Province
,
Jiangxi Province
,
Jiangsu Province
,
Zhejiang Province
, and
Guangxi Province
, we can trace all transitive forms of the different character states—male tenth abdominal tergum dorsally with or without a middle elongate sulcus, and slightly varied female subgenital plate between
S. kiangsuensis
and
S. szechaeanensis
. More importantly, male epiprocts of different geographical populations are nearly similar in structure, differing only by size of protuberance at the base of the ventral surface, of which all transitive forms with different size also can be traced (
Figure 8
G–R). The other characters including male stridulatory file, male tenth subgenital plate and male cerci are of slight or no difference. Thus we also consider
S. kiangsuensis
as a junior synonym of
S. szechaeanensis
.
Distribution
Sinochlora szechaeanensis
Tinkham
is distributed over the Chinese district of the Oriental Region.