New and little known species of Quedius from West Palaearctic (Coleoptera: Staphylinidae: Staphylininae)
Author
Yu, A.
Author
Solodovnikov
text
Zootaxa
2005
902
1
13
journal article
10.5281/zenodo.170972
f93b6cae-09b4-47ce-8eba-27d769ba4e26
11755326
170972
Quedius
(
Microsaurus
)
walteri
Korge, 1971
Korge 1971a
: 44;
Coiffait 1978
: 182;
Smetana 1995
: 83.
Material examined.
TURKEY
: 6 ɗ, 5 Ψ "Borcka, Anat. b. [northern
Anatolia
] 1. 3.6.[19]60 leg. F. Schubert" (
NMW
,
FMNH
); 1 ɗ, 1 Ψ, “
Turkey
, Artvin, Karçal Daği, subalpine zone,
26.06.1998
, leg. I. Belousov” (
FMNH
); 1 ɗ, “
Turkey
, Artvin, Karçal Daği, forest, 2425.06.1998, leg. I. Belousov” (
ZIN
); 1 ɗ, “
Turkey
, Rize, Gül Daği, Çağlayan River valley,
1000 m
,
AlnusRhododendron
forest,
20.
VI.1998
, leg. A. Solodovnikov” (
ZIN
); 1 ɗ, “Caucasus Armen. [
Armenien
] Geb. [Gebirge] Leder Reitter /
Quedius obliqueseriatus
Epp. Coll. Reitter
” (
HNHM
).
Discussion.
This species from northeastern
Turkey
is known only from few records (
Korge 1971a
,
Smetana 1995
) and nothing was reported on its binomics. Morphologically,
Quedius walteri
is so distinct that it is difficult to affiliate it with any lineage of
Quedius
.
Korge (1971a)
tentatively placed it in the subgenus
Microsaurus
what was followed by
Coiffait (1978)
.
Smetana (1995)
moved it to the subgenus
Raphirus
,
but recently (
Smetana 2004
) back to
Microsaurus
.
There was neither an analysis to reveal phylogenetic relationships of
Q. walteri
, nor an attempt to elaborate a sound subgeneric system of
Quedius
. Thus, in the subgeneric placement of this species I tentatively follow
Smetana (2004)
, the latest published assignment. It should be noted however that it is basically a habitus of
Q. walteri
(relatively small eyes, anteriorly narrowed pronotum, short elytra), which makes this species similar to some
Microsaurus
. In fact,
Q. walteri
shares major features of the body structure, and generally similar shape of the aedeagus (especially of the median lobe) with
Q. transsylvanicus
Weise, 1875
(species currently in the subgenus
Raphirus
). Based on that similarity, I tentatively assume that
Q. walteri
and
Q. transsylvanicus
are closely related. However, even assuming their phylogenetic affinity one has to accept that they have undergone significant independent evolution since the time of divergence. There are significant morphological differences between them:
Q. transsylvanicus
has a different shape of the pronotum and the microsculpture of its upper body surface is transversal; it has no additional punctures near the posterior frontal punctures; its paramere is without inner lamellae but with sensory peg setae. Also, the distributions of the two species are restricted to the relatively remote mountain regions (
Q. transsylvanicus
is endemic to the Carpathians).
Detailed bionomic data for
Q. walteri
are recorded only for one specimen from Gül Daği (see above), where it was collected in leaf litter of
AlnusRhododendron
forest at elevation of
1000 m
. In Karçal Daği
Q. walteri
was collected both in the forest and subalpine altitudinal belts. Apparently the species is primarily a forest inhabitant, but, as many other montane forest species in very similar areas of the northwestern Caucasus (
Solodovnikov 1998
), it penetrates into the subalpine zone.
Male genitalia of this species are illustrated in
Smetana (1995,
Figs. 12–17
)
and here in
Figs. 14–17
.
Habitus is provided here in
Fig. 4
.