Can You...?

Some carrots picked in the garden the other day had an interesting caterpillar eating its way through the green stems. We put the greens aside intending to look up the species name of the little chewer after dinner, but when we went to look him up, he was gone! Oh, oh, we all said, where has he gone? A thorough search produced nothing. Yesterday my sharp-eyes daughter found him, all transformed into a chrysalis, nicely hidden in this small piece of ornamental driftwood. Can you find it?
Looks like we'll have to wait for the butterfly to appear before we finally find out who he is!