A revision of Geostiba of the West Palaearctic region. XXVI. New species and additional records, primarily from the Caucasus region (Coleoptera: Staphylinidae: Aleocharinae)
Author
Assing, Volker
text
Linzer biologische Beiträge
2018
2018-12-17
50
2
1033
1054
journal article
22475
10.5281/zenodo.3776388
fb6fbaa8-c279-408d-bbf5-d1dbe71f5827
0253-116X
3776388
Geostiba
(
Sibiota
)
unicuneata
ASSING
,
2016
(
Map 2
)
M a t e r i a l e x a m i n e d: Nagorno-Karabakh:
13♂♂
,
3♀♀
, ca.
50 km
WNW Stepanakert, S Dadivank,
39°59'N
,
46°15'E
,
1610 m
, mixed deciduous forest margin, litter and roots sifted,
5.VII.2018
, leg. Assing & Schülke (cAss, MNB).
Armenia
:
4♂♂
,
5♀♀
, ca.
30 km
W Kapan,
39°15'N
,
46°04'E
,
2040 m
, N-slope, margin of mixed deciduous forest, litter and grass roots sifted,
11.VII.2018
, leg. Assing (cAss).
C o m m e n t:
Geostiba unicuneata
was originally described based on material from the environs of Jermuk and subsequently recorded also from two localities to the north and northwest of Goris in
Armenia
(
ASSING 2016b
,
2017a
). The above records reveal that this species is remarkably widespread in the Qarabag range (
Armenia
, Nagorno- Karabakh) and present also in the Barkushati range in South
Armenia
; they considerably expand the known distribution towards the north and south (
Map 2
).
The material from different localities is distinguished by slight differences in the shape of the spermatheca and the aedeagus, but otherwise no convincing evidence was found suggesting that these populations should represent distinct species.