Something is eating the leaves of my clematis; any ideas?

I have my clematis planted so it get the south sun all day. Something is eating the leaves on it. I don't see anything on them, such as bugs. Any ideas as to what it might be?

Something is eating the leaves of my clematis; any ideas?
I have the same problem. Here (Denver) it's earwigs that are doing it. They leave little holes in the leaves and flowers. I tried using a small tin can with oil in it (they crawl in and can't get out). That got some of them bad it's a bad problem here. You rarely see the little bugger as they blend in with my mulch. So, now I put a powder insecticide on and around the plants. Will see if that works when there's more new growth.
Reply:could be leaf cutter bees
Reply:are you sleepwalking?it could be you!
Reply:Rabbits or aphids. The first you can drive off with anti-pest spray and the second, you spray soapy water on your leaves.
Reply:Ants, termites, squirrels...could be anything