title: A faunistic survey on the hover flies (Diptera: Syrphidae) of Golestan, Mazandaran and Semnan Provinces, Iran
abstract: In this paper the fauna of these beneficial insects is studied in some regions of three provinces Golestan, Mazandaran and Semnan (northern Iran). In total 43 species from 23 genera and 2 subfamilies Milesiinae and Syrphinae were collected and identified.
journal: Acta Phytopathologica et Entomologica Hungarica