A Systematic Study On Dolichopodinae From China (Diptera: Dolichopodidae)

The present dissertation deals with the systematics of Dolichopodinae from China. The research history of Dolichopodinae at home and abroad is briefly introduced. The different opinions over the generic classification of the subfamily are summarized. The general morphology of Dolichopodinae is outlined. The detailed information on the biology of Dolichopodinae is provided. The phylogenetic relationships among genera of Dolichopodinae are analyzed with Hennig86 (version 1.5). The genera Aphalacrosoma, Tachytrechus, Ahercostomus, Phalacrosoma, Argyrachlamys, Paraclius and Pelastoneurus form the basal clade, the rest genera comprise another main clade. The relationships among some genera is quite clear, while the further study of other genera is needed to confirm their monophyly and reveal the relationships. The distribution patterns of Dolichopodinae is discussed both on world and China scale. It shows that the Nearctic Realm holds the most abundant Dolichopodinae species, the follows are the Palaearctic and the Oriental Realms. The Australian Dolichopodinae is poorly studied with the least species. Except the cosmopolitan genera Dolichopus, Hercostomus, Paraclius and Tachytrechus, the rest genera are either limited in one specific realm, or mainly concentrated in one realm and sparsely scattered in other faunistical realms. China belongs faunisticlly to two zoogeographical realms - the Palaearctic Realm and the Oriental Realm. The species from the Oriental China Realm, mostly from the Central China Region, compose the principal part of Chinese fauna.In the taxonomic part, 428 species in 17 genera from China are described. Three new genera are erected: Ahypophyllus gen. nov., Aphalacrosoma gen. nov. and Setihercostomus gen. nov. The subgenus Ahercostomus of Hercostomus is elevated to the generic level, Ahercostomus Yang et Saigusa, stat. nov. Thirty-seven species are described as new to science: Aphalacrosoma taiwanensis sp. nov., Dolichopus (Dolichopus) longipilosus sp. nov., Dolichopus (Dolichopus) qinghensis sp. nov., Dolichopus (Dolichopus) yangi sp. nov., Dolichopus (Dolichopus) zhoui sp. nov., Gymnopternus fushanensis sp. nov., Gymnopternus guangdongensis sp. nov., Gymnopternus jiangi sp. nov., Gymnopternus shimentaiensis sp. nov., Gymnopternus zhuae sp. nov., Hercostomus anae sp. nov., Hercostomus breviseta sp. nov., Hercostomus caixiae sp. nov., Hercostomus chiaiensis sp. nov., Hercostomus geniculatus sp. nov., Hercostomus hualienensis sp. nov., Hercostomus huizhouensis sp. nov., Hercostomus jiulongensis sp. nov., Hercostomus longyuwanensis sp. nov., Hercostomus maoershanensis sp. nov., Hercostomus mentougouensis sp. nov., Hercostomus motuoensis sp. nov., Hercostomus nanlingensis sp. nov., Hercostomus nantouensis sp. nov., Hercostomus subrusticus sp. nov., Hercostomus taipeiensis sp. nov., Hercostomsu taitungensis sp. nov., Hercostomus taiwanensis sp. nov., Hercostomus tianeensis sp. nov., Hercostomus tianlinensis sp. nov., Lichtwardtia dentalis sp. nov., Paraclius planitarsis sp. nov., Paraclius subincisus sp. nov., Paraclius taiwanensis sp. nov., Setihercostomus taiwanensis sp. nov., Sybistroma songshanensis sp. nov., Tachytrechus guangxiensis sp. nov. The following eighteen species are describe from China for the first time: Dolichopus (Dolichopus) bonsdorffi Frey, Dolichopus (Dolichopus) brevipennis Meigen, Dolichopus (Dolichopus) galeatus Loew, Dolichopus (Dolichopus) grunini Smimov, Dolichopus (Dolichopus) hilaris Loew, Dolichopus (Dolichopus) mannerheimi Zetterstedt, Dolichopus (Dolichopus) nitidus Fallen, Dolichopus (Dolichopus) nubilis Meigen, Dolichopus (Dolichopus) reichardti Stackelberg, Dolichopus (Dolichopus) robustus Stackelberg, Dolichopus (Dolichopus) romanovi Smirnov et Negrobov, Dolichopus (Dolichopus) rupestris Haliday, Dolichopus (Dolichopus) ungulatus (Linnaeus), Dolichopus (Dolichopus) zernyi Parent, Hercostomus dilatitarsis Stackelberg, Hercostomus fulvicaudis Walker,Tachytrechus indicus Parent, Tachytrechns gussakovskii Stackelberg. Three new synonyms and one new homonym are brought forwa...