6月3日萊福野鳥保護區拍鸟,看到树上有很多毛毛虫,Tent caterpillar。
在网上找到相关信息。
Tent caterpillar moths are widespread and common, most often noticed by "tents" spun by groups of larvae, often in apple, hawthorn, and cherry trees. The adults do not feed. Tent caterpillars are slender and hairy. In many species they are social, living together in silken tents and feeding on the foliage of trees. Tent caterpillar moths rarely reach epidemic populations, although heavy defoliation would result when outbreaks occur.
转自:http://www.gopetsamerica.com/animals/insects/butterflies.aspx
这里有更详细介绍http://www3.telus.net/conrad/insects/tentcat.html