Taxonomic Research On Chinese Megaselia Flies (Diptera: Phoridae)

The thesis deals systematically with the taxonomy of the Chinese Megaselia flies for the first time.The research history on the Phoirdae and Megaselia flies both in the world and in China is reviewed.These flies are stressed as pests of economic and hygienic importance.The fauna analysis on Chinese Megaselia is given.So far,134 species flies belong to the genus Megaselia in China,in which 60 species only distribute in Oriental realm,39 species only distribute in Palaearctic realm and 35 species distribute in two or more realms.The type places of origin and distributions of 72 species flies are all in China.The flies in South China region are the most abundant in China,65 species are discovered in this region.Two new keys to males and females are provided.In this paper 96 species are described based on the specimens,which belong to the subgenus Aphiochaeta and subgenus Megaselia.Among them, 39 species are described as new to science,46 species as new to China,11 species are redeseribed.Twenty-eight new species of the subgenus Aphiochaeta:M.suniae sp.n.,M. longitubalis sp.n.,M.admirabilis sp.n.,M.spinipedalis sp.n.,M.pleuracantha sp.n.,M. nudicaudata sp.n.,M.quadratifrontata sp.n.,M.cornipalpis sp.n.,M.thoracipolychaeta sp. n.,M.cunetarsalis sp.n.,M.foliformis sp.n.,M.crassicaudata sp.n.,M.liui sp.n.,M. quadratitarsalis sp.n.,M.collicaudata sp.n.,M.longirostris sp.n.,M.changbaiensis sp.n., M.plicata sp.n.,M.paliformis sp.n.,M.lacunitarsalis sp.n.,M.flavitubalis sp.n.,M. yiliensis sp.n.,M.trimacula sp.n.,M.pennisetalis sp.n.,M.jinggangensis sp.n.,M. tibisetalis sp.n.,M.zhangi sp.n.,M.curvisetalis sp.n..Eleven new species of the subgenus Megaselia:M.conulicaudata sp.n.,M.termisetalis sp.n.,M.semicircularis sp.n.,M.gongensis sp.n.,M.palpularis sp.n.,M.qianshanensis sp. n.,M.jianfengensis sp.n.,M.quadrisetalis sp.n.,M.liaojiensis sp.n.,M.maculata sp.n.,M. huangshanensis sp.n..New record species:M.campestris,M.nigriceps,M.tecticauda,M.atrosericea, M.aculeata,M.barbulata,M.aequalis,M.labialis,M.intonsa,M.rural,M.pumila,M. protarsalis,M.valvatd,M.obscuripennis,M.diversa,M.coccyx,M.eccoptomera,M.involuta, M.meigeni,M.ruficornis,M.brevicostalis,M.giraudii,M.largifrontalis,M.citrinella,M. reversa,M.sextohirta,M.zonata,M.perplexa,M.lacustris,M.orbata,M.berndseni,M. rufipes,M.stigmatica,M.gotoi,M.hirtiventris,M.directa,M.politifrons,M.subfuscipes,M. propinqua,M.sandhui,M.nigra,M.longiseta,M.luted,M.pallidizona,M.albicaudata,M. manca.