Delimitation of the widely distributed Palearctic Stenodema species (Hemiptera, Heteroptera, Miridae): insights from molecular and morphological dataAuthorNamyatova, Anna A.0000-0001-9678-3430Zoological Institute, Russian Academy of Sciences, Universitetskaya nab. 1, St. Petersburg 199034, Russia & All-Russian Institute of Plant Protection, Podbelskogo sh. 3, Pushkin, St. Petersburg, 196608, RussiaAuthorDzhelali, Polina A.0000-0002-0741-3655Zoological Institute, Russian Academy of Sciences, Universitetskaya nab. 1, St. Petersburg 199034, RussiaAuthorKonstantinov, Fedor V.0000-0002-7013-5686Zoological Institute, Russian Academy of Sciences, Universitetskaya nab. 1, St. Petersburg 199034, Russia & National Museum of Natural History, Bulgarian Academy of Sciences, 1 Tsar Osvoboditel Blvd, 1000 Sofia, BulgariatextZooKeys20242024-08-131209245294journal article10.3897/zookeys.1209.124766069B4575-16D4-4EC4-804D-AB4618C9AB43Stenodema turanicaReuter, 1904Figs 1 B, C
,
2 C, I
,
6 A – D, Q
,
7 D – F
,
8
,
10 A, E
,
11 A – DStenodema turanicumReuter, 1904: 23
(original description);
Carvalho 1959: 307
(catalogue);
Wagner 1974: 112
(key to species).
Stenodema turanica
:
Muminov 1989: 127
(key to species);
Kerzhner and Josifov 1999: 196
(catalogue).
6Type material examined.Lectotype
of
Stenodema turanicumReuter, 1904
(designated here):
Turkmenistan
•
♂
;
Kopet Dagh
;
38.06 ° N
,
57.37 ° E
; no date provided;
K. O. Ahnger
; (
http://id.luomus.fi/GZ.56573
); (
MZH
)
.
Paralectotypes
of
Stenodema turanicumReuter, 1904
:
Kyrgyzstan
•
2 ♀
;
Chiburgan
[
Tschiburgan
] valley;
39.60 ° N
,
70.65 ° E
; no date provided;
A. P. Fedchenko
; (
http://id.luomus.fi/GZ.56577
,
http://id.luomus.fi/GZ.56580
); (
MZH
)
•
♀
;
Gulcha
[Gulscha];
40.31 ° N
,
73.44 ° E
; no date provided;
A. P. Fedchenko
; (
http://id.luomus.fi/GZ.56575
); (
MZH
)
Tajikistan
: •
♂Panjakent
[Pendzhikent],
valley of Zeravshan River
;
39.48 ° N
,
67.60 ° E
; no date provided;
A. P. Fedchenko
; (
AMNH_PBI 00345037
,
http://id.luomus.fi/GZ.56652
)
; •
2 ♀
; (
AMNH_PBI 00345035
,
http://id.luomus.fi/GZ.56650
;
AMNH_PBI 00345036
,
http://id.luomus.fi/GZ.56651
); (
MZH
)
.
Turkmenistan
: •
♂
;
Kopet Dagh
;
38.06 ° N
,
57.37 ° E
; no date provided;
K. O. Ahnger
; (
http://id.luomus.fi/GZ.56579
)
; •
2 ♀
(
http://id.luomus.fi/GZ.56578
,
http://id.luomus.fi/GZ.56572
); (
MZH
)
•
♀Gokdepe
[Geok-tepe];
38.15 ° N
,
57.95 ° E
;
K. O. Ahnger
; (
http://id.luomus.fi/GZ.56574
); (
MZH
)
.
Uzbekistan
: •
♀
;
Shohimardon
[Schagimardan];
39.99 ° N
,
71.81 ° E
; no date provided;
A. P. Fedchenko
; (
http://id.luomus.fi/GZ.56576
); (
MZH
)
.
Diagnosis.
Body length in male 6.1–6.8, in female 6.6–7.3; frons protruding above clypeus base (Fig.
1 H, I
); labium reaching middle coxa (as in Fig.
1 N
); hind femur distinctly tapering towards apex, without spines, not enlarged, 6–8 × as long as wide (Fig.
2 C
); hind tibia curved basally (Fig.
2 I
); swelling on propleura curved (Fig.
1 H
); antennal segment I length / head width ratio in male 1.0, in female 0.9–1.0; antennal segment I length / pronotum length ratio
0.7–0.9 in
male,
0.7 in
female; antennal segment I not widened basally, its setae at base as dense as on other parts of this segment; setae of antennal segment I simple; antennal segment II length / head width ratio in male 3.1–3.5; groove on posterior part of mesopleuron absent (as in Fig.
1 M
); paired pits between calli absent (as in Fig.
1 G
); setae on posterior margin of hind femur denser than on other parts of femur, shorter than half of hind femur width (Fig.
2 C
); genital capsule only slightly longer than wide, acute apically, with outgrowth near left paramere socket (Fig.
6 Q
); right paramere ca 3 × as long as wide, its apical part as wide as basal part, apical process not bifurcate (Fig.
6 A
); left paramere with apical process acute in posterior view (Fig.
6 D
), its sensory lobe swollen (Fig.
6 B
); vesica with four membranous lobes (Figs
7 E, F
,
8 A
); dorsal labiate plate as long as wide, sclerotized ring 2–3 × as long as wide; distance between sclerotized rings 4 × as long as sclerotized ring width; membranous swelling on dorsal labiate plate not covering sclerotized rings (Fig.
10 A
); posterior wall with dorsal structure and sigmoid process between interramal lobes, dorsal structure oval (Fig.
10 E
).
Inflated vesica,
S. laevigata
, ZISP
_ ENT 00002699
A
dorsal view
B
left lateral view
C
ventral lateral view.
S. turanica
, ZISP
_ ENT 00003618
D
dorsal view
E
left lateral view
F
ventral lateral view.
S. virens
, ZISP
_ ENT 00003616
G
dorsal view
H
ventral view
I
left lateral view.
Male genitalia of
Brachytropis turanica
. lectotype
A
inflated aedeagus. left lateral view
B
genital capsule
C
right paramere. dorsal view
D
left paramere. dorsal view.
Distribution.Stenodema turanica
is known from the Balkans, Caucasus,
Turkey
,
Iraq
,
Iran
, Central Asia,
Mongolia
, and northwestern
China
(
Kerzhner and Josifov 1999
).
Notes.Stenodema turanica
was originally described (
Reuter 1904
) from the type series collected by K. O. Ahnger and A. P. Fedchenko in Central Asia and retained at the Finnish Museum of Natural History (
MZH
). Due to the observed similarity of
S. turanica
with
S. virens
, here we designated the
lectotype
for
Stenodema turanicumReuter, 1904
, the male from Kopet Dagh mountains in
Turkmenistan
(Fig.
8
,
http://id.luomus.fi/GZ.56573
).
Stenodema turanica
and
S. virens
are very similar externally. According to
Wagner (1974)
, in
S. turanica
antennal segment II is twice as long as segments III and IV combined, whereas in
S. virens
this segment is only 1.5 × times as long as segments III and IV combined. Additionally, the setae on the inner margin of hind femur are inclined in
S. virens
, whereas they are straight in
S. turanica
. The setae on the hind femur are more or less the same in both species (Fig.
2 B, C
). We confirm that the antennal segment II is longer in males of
S. turanica
rather than in males of
S. virens
, in particular, antennal segment II / head width ratio is
3.1–3.5 inS. turanica
and
2.4–2.6 inS. virens
. However, we were unable to find reliable differences in female measurements. These two species differ from each other in both, male (compare Fig.
7 D – F
and Fig.
7 G – I
) and female (compare Fig.
10 A, E
and Fig.
10 C, D
) genitalia.