| Grasslands not only provide humans with the necessary plant resources and livestock products for survival,but also have various functions such as protecting the ecological environment,regulating climate,providing habitats for various animals,and providing tourism sites for humans.The purpose of this paper is to investigate the diversity of Insectoid of grassland flies in Zhengxiangbai Banner,Inner Mongolia,in order to understand the diversity of diptera apetalous flies in typical grassland areas of Inner Mongolia,clarify the differences of insect groups between ecological restoration areas and grazing areas,and provide background information of insect resources for grassland ecological restoration.The main results are as follows1.Community compsition of the Acalyptratae:The diversity of flies in grassland ecological restoration areas and grazing areas from July to August was investigated by using Malaise trap for collecting the Acalyptratae.The results showed that in terms of the number of individuals,the dominant groups in the ecological restoration area were Tephritidae,Milichiidae,Agromyzidae and Phoridae,while the dominant groups in the grazing area were Tephritidae,Sepsidae,Phoridae and Agromyzidae.The diversity of flies in grazing area was slightly higher than that in grassland ecological restoration area,possibly because proper grazing could increase the diversity of the Acalyptratae in grassland.2.Morphological classification research:A total of 13 families,23 genera and 27 species of flise with 49 plates of the morphological feature were recorded,including 7 new species,Timia strigata sp.nov.and Ulidia nigriminutas sp.nov.of the family Ulidiidae,Rhodesiella macrochaeta Chen et Liu sp.nov.of the family Cyromyidae,Calycomyza apicifloralis sp.nov.and Phytomyza flavibasalis sp.nov.of the family Agromyzidae,Phylomyza wangae sp.nov.of the family Milichiidae and Gymnochiromyia projecta sp.nov.of the family Chyromyidae;2 newly recorded genera in China,namely Trixocelis in the family Heliomyzidae and Gymnochiromyia in the family Chromomyidae;4 new recorded species in China,Thaumatomyia hallandica of the family Chloropidae,Sepsis duplicata of the family Sepsidae,Trixoscelis marginella of the family Heliomyzidae and Scaptomyza pallida of the family Drosophilidae;10 new recorded species in Inner Mongolia,Timia protuberans and Tetanops Sintenisi of the family Ulidiidae,Meromyza saltatrix of the family Chlorpidae,Chaetolonchaea pellicula of the family Loncaeidae,Agromyza mobilis and Phytomyza horticola of the family Agromyzidae,Oecotha fenestralis of the family Heliomyzidae,Eudorylas globosus and Eudorylas minor of the family Pipunculidae and Zodion asiaticum of the family Conopidae. |
