More caterpillars

We've seen a lot of these webs on trees in the past few weeks. They're created by a caterpillar known as the Fall Webworm. One of those rare cases where the moth hasn't got a name of its own because the caterpillar was the thing that people noticed first.
We were watching the caterpillars crawl back into their web early this morning after a night spent nibbling away at the leaves of this ash tree.


And here's one of the little culprits.


As they appear late in the year they're not considered to be particularly damaging to the trees, although the webs aren't desperately attractive.