Striped insect found in swarms
July 26, 2009
We have just recently found these little bugs in swarms on all of our trees, especially the cedar trees. We don’t see any specific damage being done by them. These are located in Syracuse NY. Please advise if these should be of concern?
Syracuse NY 13209
Thanks so much for writing to us before you decided to take drastic measures to exterminate these benign Cerastipsocus venosus, Barklice in the family Psocidae. Generally when a large group of insects congregate on plants in this manner, they are feeding on the plant and potentially causing damage. These Barklice are feeding on lichens, not on your tree. They are immature and adult Barklice are winged. You may find images of adult Barklice on BugGuide.