تنوع گونه اي دوبالان خانواده (Diptera: Syrphidae) در استان لرستان

Diversity of flower flies (Dip.: Syrphidae) in Lorestan province

مگس ­هاي خانواده Syrphidae از بزرگترين خانواده ­هاي راسته دوبالان هستند. حشرات كامل آن­ها از شهد و گرده گياهان تغذيه مي­ كنند و لاروها طيف وسيع غذايي دارند. لاروهاي برخي از گونه ­ها از مهم­ترين شكارگرهاي آفات مختلف به ­ويژه شته ­ها هستند. در يك بررسي كه به­ منظور شناسايي فون مگس ­هاي خانواده Syrphidae طي سال ­هاي 89-1388 در استان لرستان انجام شد، 27 گونه متعلق به دو زيرخانواده و 16 جنس جمع­ آوري شدند كه 22 گونه براي اولين ­بار از استان لرستان و يك گونه براي اولين­ بار از ايران گزارش شدند. در زير اسامي گونه ­هاي جمع­ آوري شده آمده است: الف) زيرخانواده Syrphinae Episyrphus balteatus (DeGeer, 1776); Ischiodon aegyptius (Wiedemann, 1830)*; I. scutellaris (Fabricius, 1808)*; Syrphus vitripennis Meigen, 1822*; Xanthogramma maculipenne (Mik, 1887)*; Eupeodes (Eupeodes) corollae (Fabricius, 1794); E. (E.) nuba (Wiedemann, 1830)*; Scaeva albomaculata (Macquart, 1842); S. dignota (Rondani, 1857)*; Sphaerophoria rueppelli (Wiedemann, 1830)*; S. scripta (Linnaeus, 1758)*; S. turkmenica (Bankowska, 1964)*; Chrysotoxum parmense (Rondani, 1845)*; Paragus (Padasyophthalumus) tibialis (Fallen, 1817)*; P. (Paragus) bicolor (Fabricius, 1794)*; P. (P.) compeditus Wiedemann, 1830; Melanostoma mellinum (Linnaeus, 1758)* ب) زيرخانواده (Milesiinae (Eristalinae Eristalinus taeniops (Wiedemann, 1818)*; E. (Lathyrophthalmus) aeneus (Scopoli, 1763)*; E. (L.) megacephalus (Rossi, 1794)*; E. (Eristalinus) sepulchralis (Linnaeus, 1758)*; Eristalis (Eoseristalis) arbustorum (Linnaeus, 1758)*; E. (Eristalis) tenax (Linnaeus, 1758; Eumerus kazanovskeye Param., 1927**; Merodon (Merodon) pruni (Rossi, 1790)*; Syritta pipiens (Linnaeus, 1758)*; Volucella zonaria (Poda, 1761)* گونه ­هاي داراي يك ستاره براي فون استان لرستان جديد هستند و گونه Eumerus kazanovskeye براي اولين ­بار از ايران گزارش مي­ شود و با دو ستاره مشخص شده است.

The family Syrphidae is one of the largest families of Diptera. Their adults feed mainly on nectar and pollen and the larvae eat a wide range of foods. Some species are predators of different pests especially aphids. A survey was conducted during 2009-2010 on the fauna of Syrphid flies in Lorestan province, Iran. A total of 27 species belonging to 16 genera and two subfamilies were identified, which 22 of them were new records from Lorestan province and one species were new record for the faune of Iran. The list of collected species is as follow: Subfamily Syrphinae: Episyrphus balteatus (DeGeer, 1776); Ischiodon aegyptius (Wiedemann, 1830)*; I. scutellaris (Fabricius, 1808)*; Syrphus vitripennis Meigen, 1822*; Xanthogramma maculipenne (Mik, 1887)*; Eupeodes (Eupeodes) corollae (Fabricius, 1794); E. (E.) nuba (Wiedemann, 1830)*; Scaeva albomaculata (Macquart, 1842); S. dignota (Rondani, 1857)*; Sphaerophoria rueppelli (Widemann, 1830)*; S. scripta (Linnaeus, 1758)*; S. turkmenica (Bankowska, 1964)*; Melanostoma mellinum (Linnaeus, 1758)*; Chrysotoxum parmense (Rondani, 1845)*; Paragus (Padasyophthalumus) tibialis (Fallen, 1817)*; P. (Paragus) bicolor (Fabricius, 1794)*; P. (P.) compeditus Wiedemann, 1830 Subfamily Milesiinae (Eristalinae): Eristalinus taeniops (Wiedemann, 1818) *;E. (Lathyrophthalmus) aeneus (Scopoli, 1763) *;E. (L.) megacephalus (Rossi, 1794)*; E. (Eristalinus) sepulchralis (Linnaeus, 1758)*; Eristalis (Eoseristalis) arbustorum (Linnaeus, 1758) *; E. (Eristalis) tenax (Linnaeus, 1758)*; Eumerus kazanovskeye Param., 1927**; Merodon (Merodon) pruni (Rossi, 1790)*; Syritta pipiens (Linnaeus, 1758)*and Volucella zonaria (Poda, 1761)*. The species marked with one asterisk are new records for Lorestan province and the Eumerus kazanovskeye is recorded for the first time form Iran and appeared with two asterisks.