Pseudorthocladius (Pseudorthocladius) cristagus Stur & Saether , 2004

Ren, Jing, Lin, Xiaolong & Wang, Xinhua, 2014, Review of genus Pseudorthocladius Goetghebuer, 1943 (Diptera, Chironomidae) from China, ZooKeys 387, pp. 51-72 : 54

Pseudorthocladius (Pseudorthocladius) cristagus Stur & Saether, 2004

Pseudorthocladius (Pseudorthocladius) cristagus Stur & Sæther, 2004: 79; Ashe and O’Connor 2012: 531.

Diagnosis.

The male imago is separable from the other species of the genus Pseudorthocladius by having hairy wings, strong crista dorsalis and outer heel of the gonotylus.

Specimens examined.

China, Zhejiang: 1 ♂ (BDN No.K5B50), Taizhou City, Tiantai County, Huading Mountain, 29°15'45"N, 121°06'36"E, 13.iv.2011, Xiaolong Lin, sweep net.

Remarks.

Stur and Sæther (2004) erected a hairy–winged species Pseudorthocladius (Pseudorthocladius) cristagus based on the specimen from Luxemburg. The species can be separated from close species Pseudorthocladius (Pseudorthocladius) pilosipennis by having a gonostylus with a prominent crista dorsalis and an outer heel. The Chinese specimen mainly agrees with the original description of Stur and Sæther (2004). Some measured differences between the specimens from China and Luxemburg are shown in Table 2.

Distribution.

Zhejiang Province (Oriental China); Luxemburg.