• “Bugs on maple tree trunk”

    Question

    What are these bugs on my maple tree? Are they harmful to the tree? Do they bite? Thank you.

    Naturalist's Response

    What I would do without BugGuide.net!!?  I couldn’t really see the insects in the picture very well, so in BugGuide’s search box, I typed “bugs on maple tree trunk.” And what popped up? A picture of insects that looked exactly like yours.  They are bark lice.  They do not bite nor do they harm the tree.  Click here for the BugGuide link with more information.

    Thanks so much for sending a picture.  I learned something, too, this time!

    -Linda Gilbert, Naturalist