New species and records of Metriocnemus van der Wulp s. str. from China (Diptera, Chironomidae)
Author
Li, Xing
Author
Wang, Xin-hua
text
ZooKeys
2014
387
73
87
http://dx.doi.org/10.3897/zookeys.387.6408
journal article
http://dx.doi.org/10.3897/zookeys.387.6408
1313-2970-387-73
A5B797E401B34D65963C26FBDB741C33
A5B797E401B34D65963C26FBDB741C33
Metriocnemus (Metriocnemus) brusti
Saether
Metriocnemus brusti
Saether
, 1989: 407;
Wang (2000
: 637).
Material examined.
CHINA: Hebei Province, Pingquan County, Guangtou Mountain,
41°1'43"N
,
118°43'1"E
, 1 male, 29.vi.1995, light trap, H. Li. Guizhou Province, Daozhen County, Xiaosha River,
29°10'45"N
,
107°32'59"E
, 1 male, 25.v.2004, light trap, H. Tang.
Remarks.
According to
Saether
(1989)
, the male can be separated from other members of
Metriocnemus
by having rounded crista dorsalis, anal point tapering to blunt apex, well sclerotized virga, comparatively sparsely haired wing with about 0-8 setae on Sc, 0-11 on M, 0-14 on PCu and 7-9 setae in cell m, and squama with 27-34 setae. The Chinese specimens have slightly more setae on wing membrane, with about 2-9 setae on Sc, 12-14 on M, 35-48 on PCu and 13-16 setae in cell m, but squama only with 15-17 setae. The species is similar to
Metriocnemus (Metriocnemus) albilineatus
(Meigen, 1818) and
Metriocnemus (Metriocnemus) eurynotus
, but has tapering anal point and rounded crista dorsalis. It has a well developed virga as in
Metriocnemus (Metriocnemus) corticalis
and differs from this species in minor details in the wing chaetotaxy and the hypopygium.
Distribution.
The species is recorded from the Nearctic and Palaearctic regions (
Ashe and
O'Connor
2012
). It was collected in both Oriental and Palaearctic China.