湘西地区蚱总科昆虫多样性初步调查及区系分析

Preliminary Investigation on the Diversity and Fauna Analysis of Tetrigoidea in Xiangxi Region

摘要: 2020年8月至2021年7月，对湖南省湘西土家族苗族自治州地区的蚱总科Tetrigoidea昆虫进行初步调查，结合吉首大学生物标本馆馆藏标本，共发现蚱总科昆虫4科12属22种，其中11种为湖南省新纪录种。区系分析结果表明，湘西地区蚱总科昆虫区系成分以东洋界为主，占所有种类的81.82%；广布种次之，占18.18%。在中国动物地理区系中，湘西地区蚱总科昆虫有6种分布型，以华中区–华南区–西南区型分布为主(占36.36%)，其次是华中区(占31.81%)，往北部和东北部逐渐减少，东北区和蒙新区则无分布。

Abstract: From August 2020 to July 2021, a preliminary investigation of Tetrigoidea was carried out in Xiangxi Tujia and Miao Autonomous Prefecture of Hunan Province. In addition, pygmy locusts specimens hold in the biological herbarium of Jishou University were also consulted and identified. 22 species of Tetrigoidea were identified in this study which was belonged to 12 genera in 4 families, and 11 of them were new record species in Hunan Province, China. The results of fauna analysis showed that the dominant species of Tetrigoidea in Xiangxi Region was the Oriental species and occupied 81.82% of all species, and the second was the Eurytopic species occupied 18.18%. In the Chinese zoogeographical divisions, there were 6 distribution patterns of Tetrigoidea in the Xiangxi Region, 36.36% of species are across three subregions of Central China, South China and Southwest China, and 31.81% of species are across one subregion of Central China, gradually decreasing to the north and northeast of China, then no affinities to the northeast of China and the Inner Mongo-lia-Xinjiang region.