Don't know how harmless they are, but I don't think I would get close enough to find out.
Her crepe myrtle that separated down the middle. I asked her if she thought "Bill" the stray cat that adopted her family used it to get up on their roof, as they have seen him up there a few times and not sure how he got there. Hmmm......
Click on pics to enlarge.
Just a Dab of This and That of little things going on just outside the door on a hot Summer day.
Dab of This and That