Metriocnemus (Metriocnemus) albolineatus (Meigen)

Li, Xing & Wang, Xin-hua, 2014, New species and records of Metriocnemus van der Wulp s. str. from China (Diptera, Chironomidae), ZooKeys 387, pp. 73-87 : 75

Metriocnemus (Metriocnemus) albolineatus (Meigen)

Chironomus albolineatus Meigen, 1818: 39

Chironomus atratulus Zetterstedt, 1850: 3590

Metriocnemus albolineatus (Meigen); Sæther (1989: 399)

Material examined.

CHINA: Sichuan Province, Ganzi City, Yajiang County, 29°53'48"N, 103°10'19"E, 1 male, 14.vi.1986, light trap, X. Wang.

Remarks.

The male can be separated from other species of Metriocnemus by having a short virga (23-26 µm long), very weak inferior volsella, rounded to bluntly triangular crista dorsalis, tapering anal point with blunt apex, Sc with 10-31 setae, M with 15-32 setae, and cell m with 35-73 setae. This species is a member of the eurynotus group, but the male can be separated from other species of the group by having a shorter virga and a weaker inferior volsella. It has more setae on the wings than Metriocnemus (Metriocnemus) brusti and Metriocnemus (Metriocnemus) corticalis , but fewer than Metriocnemus (Metriocnemus) eurynotus .

Distribution.

The species is recorded from the Nearctic, Palaearctic and Oriental regions ( Ashe and O’Connor 2012). In China it was collected from Sichuan Province in Oriental China for first time.