Corynoneura tokaraquerea Sasa et Suzuki

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 : 34-36

Corynoneura tokaraquerea Sasa et Suzuki

( Figs 20 A–C)

Corynoneura tokaraquerea Sasa et Suzuki, 1995: 282 .

Material examined: JAPAN: Kagoshima Prefecture, Nakanoshima Island, sweep net, male holotype (No.289: 36), 20.v.1994, H. Suzuki.

Diagnostic characters. The species can be separated from other East Asian members of the genus by having antenna with 11 flagellomeres, apically acute, AR of about 0.5, inferior volsella reduced, sternapodeme inverted U-shaped, and gonostylus with inner lobe.

Additional description and corrections. Antennal with short, subapical sensilla chaetica in lieu of no sensory setae as stated by Sasa & Suzuki (1995). The leg ratio of the mid leg is 0.63 while the original description mentions a leg ratio of 0.60. Some additional characters should be added: Tentorium 130 µm long, 15 µm wide. VR 3.4. C length 190 µm, C / wing length 0.27. Cu length 425 µm. Cu / wing length 0.60. Wing width / wing length 0.41. C with 5 setae. Sternapodeme inverted U-shaped; coxapodeme 45 µm long; attachment point with phallapodeme placed in caudal third of lateral sternapodeme and directed caudally; phallapodeme 75 µm long, strongly curved with projection for joint with sternapodeme placed pre-lateral. Gonocoxite 88 µm long, with 3 long setae apically. Gonostylus 38 µm long, megaseta 8 µm long. HR 2.3. The wing and hypopygium of holotype are redrawn ( Figs 20 A–C).

Distribution. Japan.

Figures

FIGURE 20. Corynoneura tokaraquerea Sasa et Suzuki, 1995, male. A. Wing. B. Hypopygium, dorsal view. C. Hypopygium, ventral view.