Metriocnemus (Metriocnemus) aculeatus Chaudhuri & Bhattacharyay

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 : 74-75

Metriocnemus (Metriocnemus) aculeatus Chaudhuri & Bhattacharyay

Metriocnemus aculeatus Chaudhuri & Bhattacharyay in Chaudhuri et al. (1989: 309), Sæther (1995: 55), Wang (2000: 637).

Material examined.

CHINA: Sichuan Province, Jinfo Mountain, 30°3'30"N, 103°53'15"E, 1 male, 9.v.1986, light trap, X. Wang. Fujian Province, Wuyi Mountain, 27°43'46"N, 118°1'52"E, 4 males, 28-30.iv.1993, light trap, X. Wang. Guizhou Province, Fanjing Mountain, Huguo Temple, 27°54'43"N, 108°38'35"E, 4 males, 2-4.vii.2001, light trap, R. Zhang.

Remarks.

The species differs from all other Metriocnemus species by the wing chaetotaxy, the characteristic hypopygium with very long, sharply pointed anal point and a gonostylus lacking crista dorsalis. The Chinese specimens has higher antennal ratio (AR = 1.00-1.73) than the Indian specimens (AR = 1.09). Among the specimens of China, one was identified as Metriocnemus hirticollis (Staeger, 1839), which should be Metriocnemus (Metriocnemus) albolineatus (Meigen, 1818) after we re-examined the specimen.

Distribution.

Metriocnemus (Metriocnemus) aculeatus has been recorded from India ( Chaudhuri et al. 1989) and the Oriental China.