Rheocricotopus (Psilocricotopus) nigrus Wang & Zheng, 1989

Liu, Wenbin, Lin, Xiaolong & Wang, Xinhua, 2014, A review of Rheocricotopus (Psilocricotopus) chalybeatus species group from China, with the description of three new species (Diptera, Chironomidae), ZooKeys 388, pp. 17-34 : 23-24

Rheocricotopus (Psilocricotopus) nigrus Wang & Zheng, 1989

Rheocricotopus nigrus Wang & Zheng, 1989: 311.

Rheocricotopus (Psilocricotopus) nigrus Wang, 2000: 639; Makarchenko and Makarchenko 2011: 120, Ashe and O’Connor 2012: 566.

Specimens examined.

Type material: Holotype, ♂, Hubei Province, Xiangyang City, Gucheng County, 32°29'00"N, 111°64'00"E, 5.v.1986, sweeping, Wang XH; Paratype (1): 1♂, as holotype.

Additional material: 2♂♂, Zhejiang Province, Qingyuan County, Baishanzu National Nature Reserve, 27°73'23"N, 119°19'06"E, 18.iv.1995, sweeping, Ji BC; 11♂♂, Xinjiang Uygur Autonomous Region, Mongolian Autonomous Prefecture of Bayingolin, Kuerleying Town, 41°74'10"N, 86°10'82"E, 26.viii.2002, light trap, Tang HQ; 1♂, Xinjiang Uygur Autonomous Region, Mongolian Autonomous Prefecture of Bayingolin, Yuli County, 41°57'00"N, 86°30'00"E, 25.v.2002, sweeping, Tang HQ; 1♂, Xinjiang Uygur Autonomous Region, Haba County, 48°17'00"N, 86 °42'00"E, 15.vii.2002, sweeping, Tang HQ; 1♂, Fujian Province, Nanping City, Mangdang Mountain, 26°69'52"N, 118°12'55"E, 22.ix.2002, sweeping, Liu Z; 1♂, Fujian Province, Nanping City, Mangdang Mountain, 26°69'52"N, 118°12'55"E, 23.ix.2002, sweeping, Liu Z.

Diagnosis.

The adult male can be separated from other members of the group by the following combination of characters: body totally dark brown; AR 1.30; dorsocentrals 20; humeral pit large, similar to the square.

Remarks.

The species distributed in both Oriental and Palearctic Region. The specimens from Palearctic Region have fewer dorsocentrals (13-17) than those from Oriental Region (20).

Distribution.

China (Hubei, Zhejiang and Fujian Provinces, Xinjiang Uygur Autonomous Region), Russia (Far East).