摘要
眼蕈蚊科(Sciaridae)为双翅目中小型暗色的蚊类,触角16节,复眼向背面尖突形成眼桥。眼蕈蚊的种类多、数量大,幼虫多生活在富有腐植质的土壤中,常危害植物的地下部分及野生和栽培的菌蕈。我国的眼蕈蚊种类相当多,但内蒙古缺乏调查,本文就现有的标本记述了5新种,代表5个属,内有一中国新记录属。新种的模式标本保存在北京农业大学昆虫标本室。
The present paper deals with five new species of sciarids belonging to five genera from Nei Mongol. The genus Pharetratula Mamaev is a new record for China .The type spcimens are kept in the Insect Collections of Beijing Agricultural University.1. Pharetratula sinica,sp. nov. (Fig.1)Similar to the Russian species P. bidens and P. favicornis Mamaev (1968), but separable by the two spines of the distimere as in Fig.1 E.Holotype (?), Bao'an Forestry Station, Zhouzi Co., 21-Ⅷ-1978, Yang Chi-kun.2. Sciara isopalpi, sp. nov. (Fig. 2)Allied to Sciara xizangana Yang et Zhang, 1987 from Tibet, but separable by the three joints of palp almost equal in length, and the fore tibial comb oblique (Fig. 2C).Holotype (?) , Hailar, 27-Ⅷ-1986, coll. Li Fasheng; paratypes: 1 (?) , Manzhouli, 27-Ⅷ-1986, coll. Li Fasheng; 1 (?), Mt. Manhanshan, Liangcheng, 2-Ⅷ-1978, coll. Yang Chi-kun.3. Lycoriella neimongolana, sp. nov. (Fig.3)Allied to L. tibetana Yang et Zhang, 1987, but the basal median setal group of basimere distincdtly separated, and without a long seta on the middle of the inner margin of distimere. Holotype (?) , Mt. Huanghuashan, Huade Co., 11-Ⅷ-1978, coll. Yang Chi-kun.4. Scatopsciara trispina, sp. nov. (Fig.4)Similar to S. oligoseta Yang et Zhang, 1987 from Tibet in that there is only one apical spur on the middle and hind tibia, but there are three strong apical spines on the distimere in the new species.Holotype (?) , Zhouzi Co., 21-Ⅷ3-1978, coll. Yang Chi-kun; paratype 1 (?) , Mt. Huanghuashan, Huade Co., 11-vⅧ-1978, coll. Yang Chi-kun. 5. Bradysia mecoteniuni, sp. nov. (Fig.5)Allied to B. microcteniuni Yang et Zhang, 1987 from Tibet, but separable by body smaller (body length 3.3mm. wing length 3.2mm) and the fore tibial comb (Fig. 5B) with 14 long setae in a single row (B. microcteniuni with 5 short setae.).Holotype (?), Mt. Wulashan, Dahuabei, 14-Ⅶ-1987. coll. Yang Chi-kun.
