大叶醉鱼草访花昆虫行为与活动规律

Behavior and Activity Rhythm of Flower-visiting Insects on Buddleja davidii

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。

The species and visiting behavior of flower-visiting insects onBuddleja 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 onBuddleja davidiiwas 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 toB. davidii was different, with the highest flower-visiting frequency from 12：00 to 16：00 everyday.