Classification And Faunal Analysis Of The Svrphidae (Diptera) In Southeastern Tibet

The syrphid flies are a group of important natural enemy insect and insect pollination.Tibetan southeastern region is rich in biodiversity.It’s unfavorable to chemical prevention and control of plant diseases and insect pests of crops because of its special geographical location and human environment.This study has conducted fishing expeditions and specimen collection of Tibetan southeastern food aphid fly insect species through the trap and other ways.Three subfamilies have been identified,31 genera and 70 species in Tibetan southeastern by using traditional methods of comparative morphology for the identification and recorded the distribution of them,and also drew the adult retrieval table from of the subfamily,genera and species.Using natural enemy insects and protecting the biodiversity is dedicated to provide you with basic information.Insect fauna of the family Syrphidae was surveyed in the Tibet.Tibet which is a part of the Palaearctic realm of world zoo geographical divisions.70 species,three subfamilies,31 genera were identified.The percentage composition of the fauna were as follows:the 18 Oriental species,the 12 Palaearctic species and 40 Palaearctic-Oriental species identified respectively comprised 25.7%,17.1%and 57.1%of the species were identified.A total of 31 genera and 70 species of three subfamilies of aphid flies were found in southeastern Tibet,including four families and 20 genera of aphid flies,six families and ten genera of pipe aphid flies,and one family and one genera of nest aphid flies.Among them,two species belong to Chrysotoxum Meigen,1803,two species belong to Melanostoma Schiner,1860,two species belong to Platycheirus Le Peletier et Serville,1828,one species belong to Xanthandrus Verrall,1901,three species belong to Latreille,1804,one species belong to Asarkina Macquart,1842,three species belong to Dasysyrphus Enderlein,1938,one species belong to Betasyrphus Matsumura,1917,one species belong to Episyrphus Matsumura Adachi,1917,one species belong to Dideoides Brunetti,1908,one species belong to Epistrophe Walker,1852,one species belong to Meliscaeva Frey,1946,one species belong to Parasyrphus Matsumura,1917.There are five species of Eupeodes Osten-Sacken,1877,one species of Parasyrphus Matsumura,1917,one species belong to Scaeva Fabricius,1805,five species belong to Sphaerophoria Le Peletier et Serville,1828,two species belong to Syrphus Fabricius,1775,one species belong to Xanthogramma Schiner,1860,one species belong to Megasyrphus Dusek et Laska,1967,three species belong to Megasyrphus Dusek et Laska,1967,one species of Monoceromyia Shannon,1922,13 species of Cheilosta Meigen,1822,three species of Rhingia Scopoli,1763,one species of Chrysogaster Meigen,1803,one species of Chrysogaster Meigen,1803,five species of Eristalinus Rondani,1845,four species of Eristalis Latreille,1804,three species of Helophilus Meigen,1822,one species of Paractophila Herve-Bazin,1914,one species of Volucella Geoffroy,1762,one species of Spheginobaccha de Meijiere,1908.In southeastern Tibet,many genera constitute the main part of the genus of Syrphidae in southeastern Tibet.Oriental species or widespread species are the main species.At the same time,among the seven sub-regions of zoogeography in China,the same species are mainly distributed in North China and Qinghai-Tibet,and in Southwest Asia and Qinghai-Tibet.