Abstract: This study aimed to explore buqueti(Cyrtotrachelus buquet) adult feeding preferences.The whole feeding process of C.buqueti was recorded and compared in feeding behavior on different hosts,by the combination of laboratory rearing with field observation.The result showed that a complete feeding of C.buqueti involved four phases:searching,probing,eating and cleaning.There were multiple feeding behavior for both female and male adults.Laboratory observation showed that the time of eating and cleaning was significantly longer than that of searching and probing,the males spent more time on searching and probing than the females,but the females' eating and cleaning time was longer than the males.The feeding time of C.buqueti in different hosts was different.C.buqueti adults most liked eating bamboo shoots of Sinocalamus afris,hardly ate Arundo donax,and the other three bamboo shoots.On S.afris,their choice times,feeding times,feeding holes and feeding area were significantly more than on the other three kinds of bamboo shoots,and their searching time was less,their feeding and cleaning time was longer than on the other three bamboo shoots.The feeding behavior of C.buqueti observed in the field was basically consistent with the results observed in the laboratory.The results could help us understand the feeding behavior of C.buqueti adults,and further provide scientific basis for the research of behavior control technology of this insect.