A revision of Eastern Palaearctic Anthobium Leach, 1819 (Coleoptera: Staphylinidae: Omaliinae: Anthophagini). II. fusculum group, and two additional species of the nigrum group
Author
Shavrin, Alexey V.
Author
Smetana, Aleš
text
Zootaxa
2018
2018-11-02
4508
4
451
506
journal article
28034
10.11646/zootaxa.4508.4.1
a7ff59ca-84b3-4132-8a5d-367b14c84cee
1175-5326
2607312
D268E210-6688-4B41-9A76-AE54C2FC07BA
Anthobium confucii
Shavrin & Smetana
,
sp.n.
(
Figs. 45
,
62–63
,
65
)
Type material examined:
Holotype
♂
: ‘
CHINA
,
Sichuan
,
Gongga
|
Shan
,
Lake
abv.
Camp
2 |
2750m
,
25.VII.1994
|
A.Smetana
[C23]’ <rectangular label, printed
>, ‘
HOLOTYPE
|
Anthobium
| confucii
sp.n.
|
Shavrin A.
&
Smetana A.
des. 2018’ <red rectangular label, printed> (
NSMT
)
.
Paratypes
(
7 specimens
):
CHINA
:
SICHUAN
:
1 ♂
[specimen dissected],
1 ♀
: same data as the holotype (
1 ♂
:
CS
;
1 ♀
:
NSMT
)
;
1 ♂
[specimen dissected]: ‘
CHINA
: W-Sichuan
20. VI. 1999
|
Ya
`an
Prefecture
,
Tianguan Co.
|
E Erlang Shan Pass
,
2900 m
|
9 km
SE Luding
, 29°52N, | 102°18E,
Bachufer
,
Moss
+ |
Schotter
, leg.
M. Schülke’
<rectangeular label, printed>, ‘
Sammlung
|
M. Schülke
|
Berlin’
<green rectangular label, printed (
CSC
)
;
HUBEI
:
1 ♂
[specimen dissected]: ‘
CHINA
: W-Hubei (
Daba Shan
) | creek valley
11 km
NW Muyuping
, |
31°30'N
,
110°22'E
,
1960 m
, |
18. VII. 2001
, | leg.
M. Schülke
[C01-17]’ <rectangular label, printed>, ‘creek valley, mixed deciduous | forest (sifted) [C01-17]’ <rectangular label, printed>, ‘
Sammlung
|
M. Schülke
|
Berlin’
<rectangular label, printed> (
CSC
)
;
1 ♀
[without right elytron]: ‘
CHINA
: W-Hubei (
Daba Shan
) | creek valley
8 km
NW Muyuping
, |
31°29' N
,
110°22' E
, 1550- |
1650 m
,
18. VII. 2001
, | leg.
M. Schülke
[C01-16A]’ <rectangular label, printed>, ‘creek valley, deciduous | forest, moss | (sifted) [C01-16A]’ <rectangular label, printed> (
CSC
)
;
2 ♀♀
: ‘
CHINA
: W-Hubei (
Daba Shan
) | pass E of
Mt. Da Shennongjia
, |
12 km
NW Muyuping
,
31°30' N
, |
110°21' E
,
22. VII. 2001
, | leg.
M. Schülke
[C01-13E]’ <rectangular label, printed>, ‘dry creek valley, mixed deciduous | forest, dead wood, mushrooms, | moss,
1950–2050 m
(sifted) | [C01-13E]’ (
1 ♀
:
CS
;
1 ♀
:
CSC
).
All
paratypes
with additional red rectangular printed label
: ‘
PARATYPE
|
Anthobium
| confucii
sp.n.
|
Shavrin A. & Smetana A. 2018
’.
Description
. Measurements (n=7): HW: 0.72–0.75, HL: 0.42–0.45; AL(
holotype
): 1.08; OL: 0.20–0.22; PL: 0.52–0.55; PW: 1.17–1.24; ESL: 1.42–1.50; EW: 1.55–1.59; AW: 1.15–1.17; MTbL(
holotype
): 0.60, MTrL(
holotype
): 0.32 (MTrL 1–4: 0.21; MTrL 5: 0.11); AedL: 0.45–0.50; TL: 3.00–3.45 (
holotype
: 3.15).
In external appearance similar to
A. monticola
. Head and antennomeres 4–11 brown; middle portion of pronotum, elytra and abdomen reddish brown to brown; lateral portions of pronotum and sometimes of elytra, apical segments of abdomen yellow to yellow-brown; mouthparts, antennomeres 1–3 and legs yellow. Basolateral portions of head on posterior parts of infraorbital ridges and between ocelli with rugose transverse microsculpture in some specimens; middle part of neck with traces of indistinct isodiametric microsculpture. Middle portion of head with irregular small punctation, punctation between ocelli and on infraorbital ridges distinctly larger and deeper, rugose on posterior half of infraorbital ridges; pronotum with irregular, dense and deep punctation, sparser and smaller on mediobasal third, some specimens with small impunctate area between mediobasal impression; punctation of elytra slightly denser, markedly larger and deeper than that on pronotum, smaller on parascutellar portions and in specimen from Erlang
Shan
along suture. Habitus as in
Fig. 45
.
Head 1.6–1.7 times as wide as long; middle portion of head slightly elevated, with deep transverse impression between eyes at posterior third; anterior portion between antennal insertion and anterior margin of eye with moderately deep semicircular notch. Ocelli situated slightly behind level of acute postocular ridges. Length × width of antennomeres (
holotype
): 1: 0.12 × 0.07; 2–3: 0.10 × 0.04; 4: 0.10 × 0.05; 5: 0.09 × 0.05; 6–8: 0.09 × 0.06; 9: 0.08 × 0.06; 10: 0.07 × 0.07; 11: 0.15 × 0.07.
Pronotum more than twice as wide as long, 1.6 times as wide as head, widest in middle, more narrowed posteriad than anteriad; anterior angles distinctly protruded anteriad; posterior angles acute; pronotum with markedly convex middle portion, with indistinct longitudinal impression on medioapical part and deep semioval impression on mediobasal third.
Elytra slightly broader than long, markedly widened apicad, with wide and distinctly explanate lateral portions; middle part of each elytron with indistinct longitudinal elevations between punctures.
Male. Apical margin of abdominal tergite VIII and sternite VIII slightly sinuate. Aedeagus (
Fig. 62
) with median lobe wide basally and gradually narrowed toward subtruncate apex; parameres distinctly exceeding apex of median lobe; internal sac wide and very long, spiralled in basal portion. Aedeagus laterally as in
Fig. 63
.
Female. Apical margin of abdominal tergite VIII straight. Apical margin of abdominal sternite VIII rounded.
Comparative notes.
Based on the shapes of pronotum and elytra,
A. confucii
Shavrin & Smetana
,
sp.n.
is most similar to Himalayan
A. altivagans
and
A. monticola
, and Chinese
A. laozii
Shavrin & Smetana
,
sp.n.
From
A. altivagans
it differs by the shape of anterior angles of pronotum strongly protruded anteriad; from
A. monticola
by acute posterior angles of pronotum and from
A. laozii
sp.n.
by darker coloration of the forebody. In addition, it differs from
A. monticola
and
A. laozii
sp.n.
by slightly wider elytra. From all these species,
A. confucii
sp.n.
differs by indistinct microsculpture of basolateral portions of head, by larger punctation of elytra, by the lateral portion of pronotum more narrowed posteriad than anteriad, and by details of both external and internal structures of the aedeagus.
Distribution.
The new species is known from several locations in Gongga Shan and Erlang Shan ranges in
Sichuan
and Daba Shan range in
Hubei
,
China
(
Fig. 65
).
Bionomics.
Specimens from
Hubei
were collected at elevations from
1550 to 2900
m
a.s.l. by sifting wet moss and grassy vegetation on large fallen trees close to the water near shallow lake in a primary deciduous forest (location: C23) and by sifting moss, dead wood and mushrooms in mixed deciduous forests.
Etymology.
Patronymic, the species is named in honour of the great ancient Chinese philosopher Confucius.