[Investigation on anopheline species in Chayu County, Linzhi Prefecture of Tibet Autonomous Region].

Objective To investigate Anopheline species in Chayu County of Linzhi Prefecture,Tibet.Methods Four natural villages in Chayu County were selected in this study in 2010.The methods of overnight/semi-overnight trapping indoor and outdoor human-bait,and overnight trapping with light traps were used,and all the Anopheline mosquitoes were confirmed by morphological characteristics.Results Totally 2 991 Anopheline mosquitoes were captured,with 76.36%(2 284/2 291)of An.peditaeniatus,22.30%(667/2 291)of An.maculates group.The average densities of An.peditaeniatus by semi-overnight trapping were 56.2/per person indoor and 4/per person outdoor respectively,and the average densities of An.maculatus group by semi-overnight trapping were 17.8/per person indoor and 17.9/per person outdoor respectively.The man-biting rates of An.peditaeniatus by overnight trapping were 28.1/per person indoor and 2/per person outdoor respectively,and were both 8.9/per person to An.maculatus group.Conclusion An.peditaeniatus and An.maculatus group are the possible transmission vectors of malaria in Chayu County.