Abstract
On examining the biting midges specimens collected the past years , 8 new species of Dasyhelea have been found and reported in present paper.All the type specimens are deposited in the Medical Entomology Collection Gallery. <br> 1.Dasyhelea junxiana sp.nov.( Fig.1) <br> Male.A medium brown species.Wing length 1.03 mm;breadth 0.35 mm.Frontal sclerite broadly elliptical, with 2 pointed end ventral projection.Antenna last segment with long apical style; legs pale, femoro-tibial joints darker, hind tibial with 7 end-setae; aedeagus two chitinnized lobes, widely separated basally, and convergent caudad, apically outcurved and pointed. <br> Holotype male, Junxian (32°5′N, 111°5′E), Hubei Prov.June 5, 1981, collected by YU Yi-Xin. 2.Dasyhelea lugouqiaoensis sp.nov.( Fig.2) <br> Male.A medium size brown species.Wing length 1.17 mm; breadth 0.37 mm; frontal sclerite broadly elliptical, with a sharp-angled ventral projection.Antennal last segment with apiecal style;legs yellowish, femoro-tibial joints darker, hind tibia with 11 end-setae; aedeagus two chitinnized lobes, widely separated basally, and convergent caudad, apically outcurved. <br> Holotype male, Lugouqiao (39°8′N, 116°2′E), Beijing M., July 29, 1982, collected by YU Yi-Xin. 3.Dasyhelea forficpenis sp.nov.( Fig.3) <br> Male.A medium size brown species.Wing length 1.23 mm, width 0.34 mm.Antenna last segment with apical style; legs yellowish, hind tibial with 7 end-setae.Aedeagus with rather long basal ridge, 2 caudal lobes parallel, and pliers-like ended at tip. <br> Holotype male, Habahe (40°0′N, 86°4′E), Xinjiang Aut.Reg., July 15, 1988, collected by YU Yi-Xin. 4.Dasyhelea arcuotheca sp.nov.( Fig.4) <br> Female.A large brown species.Wing length 1.62 mm, width 0.6 mm.Antenna last segment with long apical style, AR 1.02; legs yellowish, hind tibial with 8 end-setae.Spermatheca with stout, retort-shaped neck. <br> Holotype female, Ottawa (45°25′N, 75°43′W), Canada, September 10, 2005, collected by YU Yi-Xin. 5.Dasyhelea changnina sp.nov.( Fig.5) <br> Male.A medium-size brown species.Wing length 0.91 mm, width 0.29 mm.Antenna last segment without apical style; legs hind tibial with 6 end-setae.Aedeagus with basal ridge slightly arcuate, 2 caudal lobes thorn-like ended at tip. <br> Holotype male, Changning (28°6′N, 114°9′E), Sichuan Prov., August 19, 1978, collected by YU Yi-Xin. 6.Dasyhelea hongyaensis sp.nov.(Fig.6) <br> Male.A small brown species.Wing length 0.70 mm, width 0.22 mm.Antenna last segment without apical style;legs hind tibial with 5 end-setae.Aedeagus with basal ridge slightly arcuate, 2 caudal lobes bifurcated claw-shaped at apex. <br> Holotype male, Hongya (29°9′N, 103°3′E), Sichuan Prov., August 19, 1978, collected by YU Yi-Xin. 7.Dasyhelea shuaoensis sp.nov.( Fig.7) <br> A small-size brown species.Male: Wing length 0.71 mm, width 0.3 mm.Antenna last segment without apical style; legs hind tibia with 5 end-setae.Aedeagus covered with hyaline envelope, and two caudal lobes long and thin. Female: Wing length 0.56 mm, width 0.26 mm;the spermatheca smaller oval, subgenital plate with large, circularity. Holotype male, Paratype 3 females, Hongkong (22°2′N, 114°1′E), August 6, 2006, collected by Mr.Zhang. <br> 8.Dasyhelea laoensis sp.nov.(Fig.8) <br> Male.A small brown species.Wing length 0.56 mm.Antenna last segment without apical style, AR 1.14. Genitalia 9th sternite with a median pestle-like posterior projection. <br> Holotype male, Laos (20°0′N, 103°0′E), July 23, 1967, donated by Dr.Wirth.关键词
毛蠓/新种/中国Key words
Dasyhelea/New species/China
