Abstract: The species and visiting behavior of flower-visiting insects on Buddleja davidii were investigated during flowering period in Yunnan Agricultural University. There were 63 species of flowering-visiting insects on B. davidii, belonging to Diptera, Hemiptera, Hymenopter, Lepidoptera, Coleoptera, Dermaptera and Mantodea. The main flower-visiting insect on Buddleja davidii was syrphid flies. The species of flower-visiting insects was differed among different month. The species and quantity of flower-visiting insect was effected by temperature changing. The flower-visiting frequency of flower-visiting insects to B. davidii was different, with the highest flower-visiting frequency from 12:00 to 16:00 everyday.

Key words: Buddleja davidii, flower-visiting insect, behavior, activity rhythm

摘要： 于2009年4～9月对云南农业大学苗圃内栽植的大叶醉鱼草访花昆虫进行观察。结果表明，大叶醉鱼草的访花昆虫有63种，隶属双翅目、半翅目、膜翅目、鳞翅目、鞘翅目、革翅目和螳螂目；食蚜蝇科为大叶醉鱼草种群的主要传粉昆虫；不同月份访花昆虫的种类不同；天气变化会影响访花昆虫的种类和数量；同一天内不同时间，访花昆虫的访花频率有差异，一般每天12:00～16:00的访花频率最高。

关键词: 大叶醉鱼草, 访花昆虫, 行为, 活动规律