Corynoneura inawapequea Sasa, Kitami 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 : 12

Corynoneura inawapequea Sasa, Kitami et Suzuki

( Figs 6 A–C)

Corynoneura inawapequea Sasa, Kitami et Suzuki 1999: 21 .

Material examined. Male holotype (no. 389: 96), JAPAN: Honshu, Fukushima Prefecture, Lake Inawashiro, light trap, 20.viii.1999, K. Kitami.

Diagnostic characters. The species can be separated from other members of the genus by having an antenna with 10 flagellomeres; AR 0.66; superior volsella almost fused with gonocoxite, inferior volsella digitiform; sternapodeme inverted V- to U-shaped; and gonostylus with triangular crista dorsalis.

Additional description and corrections. R1, R2+3 and costa fused to a short and thick vein with VR 3.2, while the original description Sasa et al. (1999) mentions R1 and R4+5 fused to a short and thick vein and VR 2.08. Apex of hind tibia with comb of 17 setae while the original description mentions apex of hind tibia with a comb of 12 setae. Gonocoxite with digitiform inferior volsella while the original description mentions gonocoxite without inner lobe, but with a small rounded and hyaline process.

Some additional characters should be added: Clypeus with 12 setae. Tentorium 118 µm long, 10 µm wide. VR 3.2. C length 180 µm, C / wing length 0.27. Cu length 420 µm. Cu / wing length 0.64. Wing width / wing length 0.38. C with 12 setae. Posterior margin of tergite IX almost straight. Sternapodeme inverted V- to Ushaped, coxapodeme 38 µm long, attachment point with phallapodeme placed in caudal third of lateral sternapodeme and directed caudally; phallapodeme weakly curved, extending beyond posterior margin of tergite IX, 65 µm long. Gonocoxite 85 µm long, with 5 long setae apically. Gonostylus 33 µm long, megaseta 3 µm long. HR 2.6, HV 3.7. The wing and hypopygium of holotype are redrawn ( Figs 6 A–C).

Distribution. Japan.

Figures

FIGURE 6. Corynoneura inawapequea Sasa, Kitami et Suzuki, 1999, male. A. Wing. B. Hypopygium, dorsal view. C.