Investigation on mosquitoes in 8 counties and cities in northeast China

WANG Feng; ZHENG Dongchun; WANG Yupeng; LIU Guoping; REN Qingming; ZU Lu; WANG Zhi

doi:10.19821/j.1671-2781.2025.06.011

Abstract：Objective To investigate the composition and distribution characteristics of mosquito populations in 8 counties and cities in the three northeastern provinces of China:Benxi and Fengcheng in Liaoning Province,Tonghua,Shulan,Changbai,and Taonan in Jilin Province,and Anda and Beian in Heilongjiang Province.Methods Three survey sites were selected based on different habitats in eight counties and cities.Mosquito collection and investigation were conducted from early July to mid August using the light trap,human-baited net trap,and human landing catch methods.Results From 2022 to 2024,31 154 mosquitoes belonging to 3 genera and 12 species were collected from 8 counties and cities in 3 provinces in northeast China,including 1 species of Anopheles,9 species of Aedes,and 2 species of Culex.The main mosquito species Aedes vexans were distributed in 8 counties and cities,while Anopheles sinensis and Culex pipiens pallens were distributed in 7 counties and cities.The dominant mosquito species was Ae.vexans(57.69%).The composition of dominant mosquito species varied among the five habitats and locations,with the residential area being Cx.pipiens pallens(96.75%).The dominant species in cattle pens and wet grasslands were Ae.vexans,accounting for 75.45%and 55.01%,respectively.The dominant species in grassland were Ae.dorsalis(59.88%)and Ae.vexans(37.75%).The dominant species in pigsty were An.sinensis and Ae.vexans,accounting for 50.88%and 40.11%,respectively.Conclusion Twelve species of mosquitoes were collected from 8 counties and cities in 3 provinces in northeast China,with Ae.vexans being the dominant species,providing a basis for mosquito ecological research and control strategies in the region.