Six new species of Chinecallicerus from China, with a new synonymy (Coleoptera: Staphylinidae: Aleocharinae: Geostibini)
Author
Assing, Volker
text
Linzer biologische Beiträge
2018
2018-07-27
50
1
47
63
journal article
21221
10.5281/zenodo.3985251
8c4bbdaf-f7ba-4274-a408-510406db64d9
0253-116X
3985251
Chinecallicerus carinatus
nov.sp.
(
Figs 1-6
,
Map 1
)
T y p e m a t e r i a l:
Holotype
♂
: "
CHINA
N
Sichuan
,
Xiao Zhaizi National Nature Reserve
,
7 km
W of
Qingpianxiang
,
1560-1700 m
,
Xiaozhaizi
, 27.6.-
1.7.2017
, FIT,
32°1'25''N
103°56'21''E
, lgt.
P. Kabátek
,
O. Konvička
,
P. Viktora
/
Holotypus
♂
Chinecallicerus
carinatus
sp.
n.
, det.
V.
Assing
2017" (SCS).
Paratypes
:
1♂
,
1♀
: same data as
holotype
(MMB, cAss).
E t y m o l o g y: The specific epithet (Latin, adjective) alludes to the sharp median carina on the male tergite VII.
D e s c r i p t i o n: Body length
3.8-4.5 mm
; length of forebody 1.9-2.0 mm. Coloration: head blackish; pronotum dark reddish-brown; elytra pale-brown; abdomen blackish with the apex and mostly also the anterior segments somewhat paler; legs yellow; antennae reddish to brown with the basal antennomeres at least slightly paler; maxillary palpi yellowish.
Head (
Fig. 1
) approximately as long as broad and of subquadrate shape; punctation very fine, barely noticeable in the pronounced microreticulation; dorsal surface practically matt. Eyes moderately convex and rather small, much shorter than distance from posterior margin of eye to posterior constriction of head in dorsal view. Antenna (
Fig. 1
) approximately
1.5 mm
long; antennomeres IV more distinctly, V-X weakly transverse.
Figs 1-6
:
Chinecallicerus carinatus
: forebody (
1
); male abdominal segments VI-VIII (
2
); male abdominal tergites VII-VIII in lateral view (
3
); median lobe of aedeagus in lateral and in ventral view (
4-5
); spermatheca (
6
). Scale bars: 1: 1.0 mm; 2: 0.5 mm; 3: 0.2 mm; 4-6: 0.1 mm.
Figs 7-16
:
Chinecallicerus orbiculatus
(
7-12
),
C. granulosissimus
(
13-15
), and
C. transversus
(
16
): habitus (
7
); forebody (
8
); head in lateral view (
9
); antenna (
10
); abdomen (
11
); spermatheca (
12, 15-16
); tergite IV (
13
); postero-median portion of tergite IV (
14
). Scale bars: 7-8, 10-11: 1.0 mm; 9, 13: 0.5 mm; 12, 14-16: 0.1 mm.
Figs 17-23
:
Chinecallicerus granulosissimus
(
17-19
) and
C. transversus
(
20-23
): habitus (
17, 20
); forebody (
18, 21
); anterior portion of abdomen (
19
); antenna (
22
); abdomen (
23
). Scale bars: 1.0 mm.
Figs 24-32
:
Chinecallicerus granulosissimus
(
24-25
) and
C. grandicollis
(
26-32
): antero-median portion of head (
24
); postero-lateral portion of abdomen (
25
); habitus (
26
); forebody (
27
); antenna (
28
); abdomen (
29
); female tergite VIII (
30
); female sternite VIII (
31
); spermatheca (
32
). Scale bars: 26-27: 1.0 mm; 28-29: 0.5 mm; 30-31: 0.2 mm; 24-25, 32: 0.1 mm.
Figs 33-41
:
Chinecallicerus trituberculatus
: habitus (
33
); forebody (
34
); antenna (
35
); abdomen in dorsal view (
36
); abdomen in dorso-lateral view (
37
); male tergite VIII (
38
); male sternite VIII (
39
); median lobe of aedeagus in lateral and in ventral view (
40-41
). Scale bars: 33: 1.0 mm; 34-39: 0.5 mm; 40-41: 0.1 mm.
Pronotum (
Fig. 1
) weakly transverse, barely 1.1 times as broad as long and 1.3-1.4 times as broad as head, broadest slightly before middle; punctation and microsculpture similar to those of head; surface practically matt; pubescence of midline directed caudad.
Elytra (
Fig. 1
) approximately 0.9 times as long as pronotum; punctation very dense and very fine, barely noticeable in the pronounced microreticulation; surface nearly matt. Hind wings fully developed.
Abdomen narrower than elytra; punctation moderately dense and fine on tergites III-VI, very sparse on tergite VII; transverse microsculpture very shallow on tergites III-VI, more distinct on tergite VII; tergites III and IV without sexual dimorphism; posterior margin of tergite VII with palisade fringe.
♂
: tergite
VII
with sharp and relatively long median carina posteriorly (
Figs
2-3
)
; posterior margin of tergite VIII smoothly convex (
Fig. 2
); sternite VIII with strongly convex posterior margin; median lobe of aedeagus
0.45 mm
long and shaped as in
Figs 4-5
.
♀
: tergite
VIII
shaped as in male
; sternite VIII with broadly and weakly convex posterior margin; spermatheca shaped as in
Fig. 6.
D i s t r i b u t i o n a n d n a t u r a l h i s t o r y: The
type
locality is situated in Xiao Zhaizi National Nature Rerserve (
China
: North
Sichuan
) (
Map 1
). The specimens were collected with a flight interception trap at an altitude of
1560-1700 m
.