Corynoneura yoshimurai Tokunaga

Fu, Yue, Saether, Ole A. & Wang, Xinhua, 2009, Corynoneura Winnertz from East Asia, with a systematic review of the genus (Diptera: Chironomidae: Orthocladiinae), Zootaxa 2287, pp. 1-44 : 36

Corynoneura yoshimurai Tokunaga

Corynoneura yoshimurai Tokunaga, 1936: 46 ; Sasa & Suzuki, 2000b: 99; not Corynoneura yoshimurai Wang, 2000: 635 (= C. inefligiata sp. n., by present designation)

Material examined: P. R. CHINA: Sichuan Province, Emeishan County, Medicine School, 29°21'N, 103°17'E, alt. 1500 m, light trap, 6 males (BDN No.1178, 1179, 0 5364, 0 5365, 0 5366, 05367), 17.v.1986, Xinhua Wang; Sichuan Province, Emeishan County, Jinding, 29°21'N, 103°17'E, alt. 3.077 m, light trap, 1 male (BDN No. 05362), 18.v.1985, Xinhua Wang; Tibet Autonomous Region, Chayu County, 29°N, 90°E, alt. 2500 m, light trap, 1 male (BDN No. 07845), 13.vi.1988, Xinhua Wang.

Diagnostic characters. The species can be separated from other East Asian members of the genus by having antenna with 9 or 10 flagellomeres; an AR of about 0.3–0.5; sternapodeme inverted U-shaped; and gonostylus slender and nearly straight.

Addition to description. The Chinese specimens had the following measurements:

Total length 0.87–1.15, 0.98 mm. Wing length 0.57–0.69, 0.62 mm. Posterior margin of tergite IX weakly bilobed. Inferior volsella large, nearly rectangular. Sternapodeme inverted U-shaped; attachment point with phallapodeme placed in caudal position of sternapodeme and ventrally directed; phallapodeme strongly curved with lateral apex bifid and embracing knob on lateral sternapodeme, not extending beyond tergite IX. Gonostylus slightly curved apically.

Remarks. Tokunaga (1936) described the species based on specimens from Japan. When we examined the specimens from Sichuan province, we found that C. celtica listed in Wang (2000) was wrongly identified; the males from Sichuan all belong to C. yoshimurai .

Distribution. Japan, and Sichuan Province and Tibet Autonomous Region, Oriental China.