عنوان مقاله [English]
The Syrphidae family, Diptera order with 6000 species, commonly named Hoverfly in USA and Flowerfly in Europe. The larvae of many species of Syrphidae are predators of aphids and play an important role in biological control. The Syrphidae included three subfamily, Eristalinae, Microdontinae and Syrphinae. Sub-family Milesiinae have 12 tribes and sub-family Syrphinae have 3 tribes which named Bacchini, Paragini and Syrphini. Genus Metasyrphus belong to tribe Syrphini and have two sub-genera, Lapposyrphus and Metasyrphus. Genus Merodon and Eumerus belong to tribe Merodontini. Genus Merodon is identify hairy bomble bee mimic with a great range of colourful forms. Genus Eumerus is very distinctive in having the combination of a flat hairy face and have small but robust species. Genus Chrysogaster belong to tribe Chrysogasterini. The investigation was carried out during May 2009 to August 2010 in eastern part of Tehran Province. Initially 12 stations in Damavand and Firoozkooh were chosen according to the vegetation and topographic maps were included: Damavand, Abesard, Rine, Gilavand, Sarbandan&Derakhtebid(Mazrae), Cheshme, Poloor, Firoozkooh, Shahrabad, Kaboodband, Dashtemorgh and Abeask &Haraz river. Species mentioned in this report were collected from four stations, Cheshmeh, Sarbandan & Derakhtebid (Mazrae), Dashtemorgh and Abesard. Then collecting was done by sweeping net in 6 mounths, subsequently specimens were killed, and taken to the systematic laboratory of Shahid Beheshti University, and identified by using keys such as Stubs & Falk,1996 , Bi-Bienko,1988 and Speigh & Sarthou, 2008. Four species namely Metasyrphus latilunulatus Collin,1931; Chrysogaster hirtella Loew,1843; Merodon elegans Hurkmans, 1993 and Eumerus ornatus Meigen, 1822 were identified. These four species are newly reported from Iran.