| The present dissertation mainly deals with the morphlogy, taxonomy, geographical distribution and phytogeny of Empoascini from China. The history and present situation both in China and abroad, its morphology, geographical distribution, economial importance, material and methods are introduced and discussed.The distribution of all the genera and species (including new taxa and new data by present research) of the world are summarized, according to the history of continental drift and the result shows that Empoascini originated in the Oriental Region in Pangaea 145Maago. Zoogeographical analysis of all the taxa in China shows that most of the genera and species of Empoascini are distributed in the Oriental Region, which is identical with the geographical distribution worldwide, i.e. most taxa distribute in the tropical and subtropical zone.Phylogenetic analysis of 40 Chinese genera of Empoascini with one outgroupikranewa is presented in this paper. 42 trees are obtained and the 13th is most acceptable. The results show that the evolutionary inclination of forewing and hindwing of Empoascini is that the forewing evolved from these whose veins of MP' are derived from cell r, to these whose MP' from cell m, and the most advanced taxa include these whose 3 distal veins are derived from cell m. The hindwing are evolved from these whose CuA is branched and the MP"+CuA' is presented, to those whose CuA is unbranched and MP"+CuA' disappeared, based on the above analysis, the genera of Empoascini can be divided into two groups: one group includes these whose MP"+CuA' are present, the other consists of those whose MP"+CuA' are disappeared.There are 76 genera, 20 subgenera and 1072 species have been reported up to now in the world of which 16 genera, 7subgenera, 94 species and 1 subspecies are known from China. In the present paper, 40 genera, 10 subgenera, 226 species and 3 subspecies are diagnosed and described, among which 12 genera and 111 species are new to science, 12 genere, 3subgenera, 58 species and 2 subspecies are recorded from China for the first time, and 3 new combinations and 4 new synonyms are proposed as well. They are all listed as follows:New genera : Circinata, Franutia, Keumiata, Kuneata, Loculata, Munealata, Platynotus, Posteroprojecta, Radicfurcus, Retrofracta, Sagittatus, Treufalka, gen.nov.Newly recorded genera: Baguoidea Mahmood, Faiga Dworakowska, Ghauriana Thapa, Goifa Dworakowska, Ifuaria Dworakowska, Ifugoa Dworakowska&Pawar, Jacobiella Dworakowska, Kotwaria Dworakowska, Schizandrasca Anufriev, Sikkimasca Dworakowska, Usharia Dworakowska, Velu Ghauri, n.rec.187Newly recorded subgenera: Empoasca (Livasca) Dworakowska, Empoasca( Okubasca ) Dworakowska, Empoasca (Sabowasca) Ram. & Men., n.rec.New species: Alebroides galigongensis, Alebroides longicolumnarius, Alebroides helerofurcus, Alebroides paradworakowskae, Alebroides basiprojectus, Alebroides pulcherrimus, Alebroides stenochilus, Alebroides parq/uscus, Alebroides testaceous, Alebroides parasohii, Alebroides tenellus, Amrasca zhangi, Amrasca complanata, Amrasca explanta, Amrasca angularis, Amrasca truncata, Apheliona yanglingensis, Apheliona fibriformis, Bhatasca sinensis, Circinata hongdaina, Dayus Hi, Dayus mediatus, Dayus lamellatus, Dayus breviprocessus, Dayus paradoxicus, Dayus flavus, Dayus membranaceus, Empoasca(s.str.) lamellata, Empoasca ephemera, Empoasca (s.str.) sacciformis, Empoasca (s.str.) curvata, Empoasca (s.stT. )forcipata, Empoasca( s.str. )complicata, Empoasca(s.str.)trachyodonta, Empoasca (s.str.) macroscopica, Empoasca (s.str) trifurcata, Empoasca (s.str.) paraprojusa, Empoasca (s.str.) angularis, Empoasca (s.str.) convoluta, Empoasca (s.str.) orientalis, Empoasca (s.str.) fusiformis, Empoasca (s.str.) obscura, Empoasca(s.stt.)conglomerata, Empoasca(s.slr.)unciformis, Empoasca(s.str.)succisa, Empoasca(s.str.) orthotropa, Empoasca (s.str.) tubercularis, Empoascs (s.str.) covergens, Empoasca (s.str.) ricina, Empoasca (s.str.) styloidea, Empoasca (s.str.) conduplicata, Empoasca (s.str.) odontoi...
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