Corynoneura medicina
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Ordo: Diptera
Familia: Chironomidae
Genus: Corynoneura
Name
Corynoneura medicina Fu, Yue, 2009 – Wikispecies link – Pensoft Profile
- Corynoneura medicina Fu, Yue, 2009, Zootaxa 2287: 25-26.
Materials Examined
Type material:Holotype male (BDN No. 05368), P. R. CHINA: Sichuan Province, Emeishan County, Medicine School, 29 ° 21 'N, 103 ° 17 'E, alt. 1.500 m, sweep net, 13.v. 1986, Xinhua Wang.
Etymology
Etymology. The name refers to the type locality, the Emeishan Medicine School of China. Diagnostic characters. Similar to C. scutellata in having antenna with 10 flagellomeres and AR 0.74, but can be separated by the inverted U-shaped sternapodeme and lack of inferior volsella.
Description
Description Male (n = 1). Total length 1.08 mm. Wing length 0.87 mm. Total length / wing length 1.24. Wing length / length of profemur 3.35. Coloration: Head dark brown. Antenna and palpomere yellow. Thorax yellowish brown with brown vittae, scutum, scutellum, preepisternum, postnotum and yellow anterior anepisternum II, median anepisternum II, posterior anepisternum II. Abdominal segments brown. Legs yellowish brown. Wing light yellow to hyaline, with pale yellow clava. Head: Antenna with 10 flagellomeres; ultimate flagellomere 215 µm long, apex with short sensilla chaetica subapically, apically acute. AR 0.74. Clypeus with 4 setae. Tentorium 120 µm long, 13 µm wide. Stipes 55 µm long. Palpomeres length (in µm): 13; 13; 23; 33; 48. Palpomere 2 and 3 ellipsoid, 4 rectangular, 5 curved. Palpomere 5 / 3: 2.1. Wing (Fig. 12 A): VR 2.6. C length 240 µm, C / wing length 0.3. Cu length 520 µm. Cu / wing length 0.6. Wing width / wing length 0.37. C with 8 setae. Legs: Spurs of fore tibia 20 and 13 µm long, of mid tibia 10 µm long, and of hind tibia 33 µm long. Width at apex of fore tibia 18 µm, of mid tibia 18 µm, of hind tibia 30 µm. Apex of hind tibia expanded, with comb of 12 setae and one setae near spur near straight. Lengths and proportions of legs as in Table 7. Hypopygium (Figs 14 B–C): Posterior margin of tergite IX bilobed, 5–6 setae on each side; laterosternite IX with 2 setae. Anal point absent. Superior volsella almost fused anteriomedially. Inferior volsella absent. Sternapodeme inverted U-shaped, 33 µm wide; coxapodeme 25 µm long, attachment point with phallapodeme placed in caudal third of lateral sternapodeme and directed caudally; phallapodeme well developed, strongly curved with projection for joint with sternapodeme placed pre-lateral, not extending beyond margin of tergite IX, 55 µm long, 3 µm wide. Gonocoxite 63 µm long with 2 setae apically. Gonostylus hooked, 30 µm long, with basal lobe on inner margin; megaseta 5 µm long. HR 2.1, HV 3.6. TABLE7. Lengths (in µm) and proportion of leg segments of Corynoneura medicinea sp. n., male. fe ti ta 1 ta 2 ta 3 ta 4 ta 5 LR BV SV BR p 1 260 325 185 90 48 20 32 0.57 4.1 3.0 2.0 p 2 365 335 195 88 44 22 34 0.58 4.8 3.8 2.0 p 3 285 340 175 85 30 15 35 0.51 4.8 3.6 1.7
Taxon Treatment
- 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: 25-26. doi
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