Rheocricotopus valgus
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Ordo: Diptera
Familia: Chironomidae
Genus: Rheocricotopus
Name
Rheocricotopus valgus Chaudhuri & Sinharay, 1983 – Wikispecies link – Pensoft Profile
- Rheocricotopus valgus Chaudhuri & Sinharay, 1983: 402.
- Rheocricotopus (Psilocricotopus) valgus Ashe & O’Connor, 2012: 568.
Specimens examined
1♂, Guangdong Province, Fengkai County, Heishiding, 23°30'02"N, 111°55'01"E, 20.iv.1988, sweeping, Wang XH; 1♂, Guangxi Province, Longsheng County, 25°89'26"N, 110°21'21"E, 16.v.1990, sweeping, Wang XH; 1♂, Guangxi Province, Jinxiu County, 24°14'00"N, 110°19'00"E, 1.vi.1990, light trap, Wang XH; 2♂♂, Hubei Province, Hefeng County, 29°91'00"N, 110°03'00"E, 16.vii.1999, light trap, Ji BC; 1♂, Hubei Province, Xianfeng Mountain, 29°70'00"N, 119°14'00"E, 25.vii.1999, sweeping, Ji BC; 1♂, Zhejiang Province, Lishui City, Qingyuan County, Baishanzu, 27°73'23"N, 119°19'06"E, 13.vii.1995, light trap, Ji BC; 4♂♂, Zhejiang Province, Lishui City, Qingyuan County, Baishanzu National Nature Reserve, 27°73'23"N, 119°19'06"E, 24.vii.2012, light trap, Lin XL; 1♂, Zhejiang Province, Wenzhou City, Taishun County, Wuyanling National Nature Reserve, 27°71'15"N, 119°64'64"E, 3.viii.2005, light trap, Ji BC; 1♂, Zhejiang Province, Lishui City, Jingning County, 27°97'67"N, 119°63'12"E, 27.vii.2012, light trap, Lin XL.
Diagnosis
This species can be separated from other members of the group by the following combination of characters: R without seta; tergites I, II and anterior part of tergite V pale brown, tergites IV and VIII brown, anal point with 4–5 setae on each side and 1 seta at the base; gonocoxite with a prominent triangular basal lobe bearing 3–4 setae.
Remarks
The Chinese specimens generally agree with the original description by Chaudhuri and Sinharay (1983)[1], though some measured differences between the Chinese specimens and those of Chaudhuri and Sinharay (1983)[1] are shown in Table 5.
Chinese specimens | Indian specimens | |
---|---|---|
Squama | 5–8, 7 setae | 9 setae (average) |
HR | 1.98–2.15, 2.08 | 2.20 (average) |
HV | 2.88–3.20, 3.03 | 3.40 (average) |
Distribution
China (Guangdong, Guangxi, Hubei and Zhejiang Provinces), India.
Taxon Treatment
- Liu, W; Lin, X; Wang, X; 2014: A review of Rheocricotopus (Psilocricotopus) chalybeatus species group from China, with the description of three new species (Diptera, Chironomidae) ZooKeys, 388: 17-34. doi