10Odonata in the Siming Mountains, Ningbo

Key Words：biodiversity, fauna, Odonata, dragonfly, Siming Mountains

Abstract：          Field surveys were conducted on the Odonata in the Siming Mountains of the Ningbo Region from 2009 to 2010. 460 Odonata specimens were collected, and a total of 43 species in 32 genera and 9 families identified. The Libellulidae were the dominant family (17 species, 39.5%) of which Orthetrum was the dominant genera (5 species, 15.6%). 25 genera (78.1%) were represented by single species. Oriental and OrientalPalearctic Realm species were the most common. Water pollution and overutilization of marshes are the main threats to the Odonata and other local aquatic organisms.