河南省蚋属一新种(双翅目:蚋科)

昆虫分类学报Vol. 29, No. 4EntomotaxonomiaDec., 2007A New Species of the Genus Simulium(Diptera: Simulidae) fromHenan ProvinceWEN Xiao-jun, WEI Jing, CHEN Han-bin(Deparment of Biology, Guiyang Medical College, Guiyang, Guizhou 50004, China)Abstract: In the present paper, a new species, Simulium (Nevermannia) henanense sp. nov,from Henan, China, is described. The type specimens are deposited in the Department ofBiology of Guiyang Medical College.Key words: Diptera; Simulidae; Simulium; new species; HenanCLC number: Q969.44*2.9Document code: AArticle ID: 1000-7482(2007)04-0290-03The Simulid fauna of Henan Province has been poorly studied. Only 4 species werereported by Li et al. (1998) and Wen & Chen (2006). In this paper, a new species, S. (N.)henanense sp. nov, is described. The type specimens are deposited in the Department oSimulium (Nevermannia) henanense, sp. nov. (Figs. 1~10)Female. Body length 3.1 mm.Wing length 2.4 mm.Head. Slightly narrower than thorax. Frons and clypeus black, whitish grey pruinose,covered with short grayish yellow hairs. Frons ratio 7.2 : 5.0: 7.5. Frontal-head ratio7.2 : 27.5. Fronto-ocular area well developed. Antenna composed of 2+9 segments, brownishblack except scape, pedicel pale yellow, 1st flagellar segment about 1.5 times as long as thefollowing one. Maxillary palp composed of 5 segments, proportional lengths of 3rd, 4th and5th segments 50 : 52 : 123; 3rd segment enlarged, sensory vesicle elliptical about 0.6 times aslong as 3rd segment. Cibarium smooth.Thorax. Scutum brownish black, densely covered with whitish yellow pubescence anderect long black hairs on prescutellar area. Scutellum brownish black whitish grey pruinosewith whitish yellow pubescence. Postscutellum dark and bare. Pleural membrance andkatepisternum bare. Legs. All coxae and trochanters brown except fore trochanter yellow. Alltibiae yellow except apical 1/4~2/5 and basal 1/7 of fore and hind tibiae brown. All tarsi brownexcept basal 1/2 of mid basitarsus, hind basitsrsus, and basal 1/2 of hind 2nd tarsal segmentyellow. Fore basitarsus not dilated, about 7 times as中国煤化工. Hind basitarsusReceived date: 2007-05-17YHCNMHGFoundation item: This Study was supported by the National Natural Science Foundation of China(39460073) and the Science and Technology Foundution of Guizhou Province (2002-3032)2902007年12月温小军等:河南省蚋属--新种291parallel-sided, about 7 times as long as wide. Claws each with large basal tooth. Wing. Costawith spinules as well as hairs; subcosta hairs; basal portion of radits fully haired.Abdomen. Basal scale brownish, fringe with yellow hairs. Terga dark brown with brownhairs. Genitalia. Stermite 8 bare medially and with about 15 hairs on each side. Anteriorgonapophyses membranous, subtriangular, covered with microsetae and some short setae;inner border narrowly sclerotized. Arms of genital fork with sclerotized ridge, lacking anyprominent projection directed forward. Spermatheca elliptic， sclerotizede surface withreticulate pattern.591410278Figs. 1~10 Simulium (Nevermarnia) henanense, sp. nov.1. female genitalia; 2. cocoon; 3. female sensory vesicle; 4. female cibarium; 5. hypostomium; 6. postgenal cleft; 7. filaments;8. larval anal sclerite and ring of minute spines; 9. rectal gill lobes; 10. larval mandiblePupa. Body length about 3.0 mm.Head and thorax. Integument sparsely covered with small tubercles. Head with 1 facialand 3 frontal pairs of long, simple trichomes, whereas thorax with 5 pairs of simple, longtrichomes. Gill organ with 4 filaments arranged in pairs arising near base, about 1/2 times aslong as pupal body proper; common stalk short, but longer than secondary stalks; two lowerpair filaments a little thicker (1 .3) and longer (1.5) than those of upper pair filaments. Theouter filament of lower pair diverged in a vertical plane at an angle; all filaments taperingdistally, with numerous transverse ridges and covered densely with minute tubercles.Abdomen. Terga 1 and 2 with weakly tubercles; tergum 2 with 6 shot hairs on each side;terga 3 and 4 each with 4 hooked spines on each side; terga 6~8 each with spine-combs andalso comb-like groups of minute spines in transverse rows on each side; tergum 9 with a pairof stout terminal hooks. Sternum 5 with a pair of bifi中国煤化工ogether on eachside; sterna 6 and 7 each with a pair of bifid hoolYHC N M H Gn. Wall-pocket-shaped, tighly woven, with a moderate anterior margin but lacking anterodorsal projection.Mature larva. Body length 6.0~6.5 mm. Body color yellowish brown. Cephalic apotomeyellow with positive head spots. Antenna longer than stem of cephalic fan, composed of 4segmept& in proportion of 6.4 : 7.5 : 5.3 : 0.3. Cephalic fan with 38~40 main rays. Mandible292昆虫分类学报第29卷第4期without supermumerary serrations. Hypostomium with a row of 9 apical teeth of which eachcorner tooth and median tooth are developed; lateral serrations weakly developed on apical 1/2;4 hypostomial setae lying parallel to lateral margin on each side. Postgenal cleft medium,rounded anteriorly, subequal in length to postgenal bridge. Thorax and abdomen integumentsbare. Rectal gill lobes simple. Anal sclerite X-formed with anterior short arms about 0.7 timesas long as posterior ones; Postrior circlet with about 65 rows of 12~15 hooklets per row.Ventral papillae prominent.Holotype:早, reared from pupa. Bailongtan, Yuntai Mountain, Jiaozuo City, HenanProvince, 35° 14'N, 113*25'E, 1 060 m.05-VI-2005, WEI Jing; Paratypes, 19, 12 pupae, 18larvae, same data as holotype.Remarks. According to the shape of female genitalia and the characters of pupa and larva,this new species seems to fall into the vernum-group of Simulium (Nevermannia) difined byTakaoka (1996). It is closely related to S. (N.) xinbinense Chen et Cao (1983) from China andS. (N.) kurtaki Takaoka et Davies (1995) from West Malasia by the characters of pupa, butthere are differences in the leg colors in the female, the shape of postgenal cleft and the rectalgill lobes compound.REFERENCES[1] Chen J Y, Cao Y C. New species and new records of the genus Eusimuliun from China(I) (Diptera: Simulidae)U]. ActaZootaxonomica Sinica, 1983, 26(3): 307-310.[2] LiF, Guo W. AnJ Y. Survey of Simulidae (Diptera) from Nanyang, Henan, Chinal[]J. Chinese Joumal of Pest Control, 1998,14(4): 33-34.[3] Takaoka H, Davies D M. The black flies (Diptera: Simulidae) of West Malaysia[M]. Fukuoka: Ryushu University Press, 195,1-175.[4] Takaoka H, Davies D M. The black flies (Diptera: Simulidae) of Java, Indonesia[M]. Bishop Museum Bulletin in Entomology 6Honolulu: Bishop Museum Press, 1996, 1-81.[5] Wen X 1, Chen H B. A new species of the subgenus Simulium from Sichuan, China (Diptera: Simulia)J]. ActaZootaxonomica Sinica, 2006, 31(4): 880-882.河南省蚋属-新种(双翅目:蚋科)温小军，韦静， 陈汉彬(贵阳医学院生物学教研室，贵州贵阳550004)记述采自河南1新种:河南纺蚋Simulium (Nevermannia) henanense, sp. nov。根据其外生殖器的形状、幼虫和蛹的特征，本新种隶属于Simulium (Nevermannia)的宽足蚋组vernum-group。其蛹的特征与中国的S. (N.) xinbinense和西马来西亚的S. (N.) kurtaki相似，但是与后2种在雌虫股节的颜色、幼虫后颊裂和直肠腮的形状迥异，可资鉴别。模式标本存放于贵阳医学院生物学教研室。中国煤化工正模:早，河南焦作云台山白龙潭，海拔1YHCN MH比纬35"14'，韦静采;副模: 1早，12蛹，18 幼虫，同正模。关键词:双翅目;蚋科;蚋属;新种:河南