Abstract: Objective To investigate the species of midges in Bagong Mountain National Forest Park, Anhui province, China, and analyze their species composition, diversity, and spatial distribution characteristics. Methods Sampling sites were selected at three different elevations (mountain top, mountainside, and valley) of Bagong Mountain National Forest Park. Midges were captured by netting and light trapping, followed by sample preparation, identification, and classification. A diversity index was calculated. Excel 2010 software was used for statistical analysis of data. Results A total of 1 006 midges were captured, which belonged to 15 species in 5 genera under 3 subfamilies, with 7 species of 2 genera from the subfamily Ceratopogoninae, 7 species of 2 genera from the subfamily Forcipomyiinae, and 1 species of 1 genus from the subfamily Dasyheleinae. It was the first time to discover and report 8 new records of midge species in Anhui province: Culicoides kibunensis, Alluaudomyia lucania, A. signosoma, Lasiohelea interceda, Forcipomyia appendicular, F. cavatus, F. conturbatus, and Dasyhelea ampelis. The composition and distribution of midges differed at different sites. The number of midges captured was highest at the mountain top, involving 12 species of 4 genera, followed by the mountainside with 7 species of 4 genera, with the least number of midges at the valley with only 5 species of 3 genera. F. bessa and F. frutetorum were the dominant species in the forest park. For the three different sampling sites, the species richness index (R) was 0.83-1.76, the species diversity index (H') was 0.94-1.17, the evenness index (J) was 0.45-0.60, and the domination index (D) was 0.48-0.57. Conclusions The species composition of midges in Bagong Mountain National Forest Park is special. This survey demonstrated that the species diversity of midges in Anhui province is enriched, and at the same time, the composition and species diversity of midges differ at different sampling points.

Key words: Midge, Species composition, Diversity, Distribution, Bagong Mountain National Forest Park, Anhui province

摘要： 目的 调查安徽省八公山国家森林公园蠓种类，分析其物种构成、多样性及空间分布特征。方法 选择八公山国家森林公园山顶、山腰和山谷3个不同海拔高度位置作为采样点，采用挥网法和灯诱法捕获蠓类标本，并制片、鉴定和分类，计算物种多样性指数，运用Excel 2010软件对相关数据进行统计分析。结果 捕获蠓类3亚科5属15种共1 006只，其中蠓亚科2属7种，铗蠓亚科2属7种，毛蠓亚科1属1种；首次在安徽省发现和报道贵船库蠓、随意阿蠓、守护阿蠓、中间蠛蠓、附突铗蠓、空洞铗蠓、烦人铗蠓和藤蔓毛蠓8个新记录种。此外，蠓类的组成和分布存在一定的差异，在山顶捕获蠓类最多，有4属12种；其次为山腰，捕获4属7种；山谷最少，仅捕获3属5种，丛林铗蠓和灌丛铗蠓为该景区优势种。且不同采样点蠓类的物种丰富度指数（R）为0.83～1.76、多样性指数（H'）为0.94～1.17、均匀度指数（J）为0.45～0.60和优势度指数（D）为0.48～0.57。结论 八公山国家森林公园蠓种类组成较为特殊，本次调查不仅丰富和增加了安徽省蠓类的物种多样性，且不同采样点蠓类组成及物种多样性存在差异。

关键词: 蠓类, 物种构成, 多样性, 分布, 八公山国家森林公园, 安徽省