New species and additional records of Lomechusini from the Palaearctic region, primarily from China (Coleoptera: Staphylinidae: Aleocharinae)
Author
Assing, Volker
text
Beiträge Zur Entomologie = Contributions to Entomology
2015
2015-12-21
65
2
243
262
https://www.contributions-to-entomology.org/article/view/1882
journal article
2514
10.21248/contrib.entomol.65.2.243-262
ed4af2cb-0a6e-4582-a387-321ae1549997
0005-805X
5887107
Drusilla canaliculata
(FABRICIUS, 1787)
Drusilla puncticollis
MOTSCHULSKY, 1845: 360
;
syn. nov.
Material examined
:
Turkey
: 1 ♂,
Nevşehir
,
Göre
,
21.IV.1992
, leg.
Kocian
(cKoc)
.
Iran
: 1 ♀,
Ardabil province
,
20 km
NE
Khalkhal
,
37°41'N
,
48°23'E
,
1480 m
,
13.X.2011
, leg.
Frisch
(
MNHUB
); 1 ♀
,
Gilan province
,
Bandar-e Anzali
,
Bashm
,
37°30'N
,
49°21'E
, 0 m, marshland,
1.V.2012
, leg.
Weipert
(
NME
)
.
Kyrgyzstan
: 1 ♀,
Issyk-Kul
,
Tyup
,
42°45'N
,
78°23'E
,
1620 m
,
28.VI.2011
, leg.
Frisch
(
MNHUB
);
1 ♀, IssykKul, Balykchy - Cholpon-Ata, Semenovka,
42°46'N
,
77°32'E
,
1860 m
,
30.VI.2011
, leg.
Frisch
(cAss)
.
Japan
:
1 ex.
,
Hokkaido
,
Sapporo
env.,
Nopporo
virgin forest,
15.V.2010
, leg.
Lackner
(cAss)
;
2 exs.
,
Hokkaido
,
Sapporo
,
Hokudai Campus
,
VII.2011
, leg.
Lackner
(cAss)
.
Comment
:
Drusilla puncticollis
, whose descriptions is based on
two syntypes
from “Kamtschatka” (
MOTSCHULSKY 1845
), was previously treated as a subspecies of
D. canaliculata
(
SMETANA 2004
)
. According to
MOTSCHULSKY (1845)
, who already expressed doubts regarding the status of this taxon (“Je propose cette espèce avec doute”),
D. puncticollis
is distinguished from
D. canaliculata
by larger body size, darker coloration, and a more deeply impressed pronotum. Examined material from the eastern East Palaearctic region indeed tends to be darker and of slightly larger size than material from West Europe; for previous records see
ASSING
(2005a
, b, 2006b, 2008a, 2009, 2010). However, similar character conditions have been observed also in specimens from some regions in Middle Asia and the West Palaearctic region (particularly
Iran
), suggesting that these differences should be interpreted as intraspecific, possibly clinal variation. Moreover, the presence of a distinct subspecies in Kamchatka appears most unlikely. Hence the synonymy proposed above.
The previously known trans-Palaearctic distribution of
D. canaliculata
extended from West Europe to the Russian Far East (
SMETANA 2004
). The above specimens from
Hokkaido
represent the first records from
Japan
.