Late summer was a busy time, and not much attention was paid to the yard. Then, in mid-October, after being away for a bit, I found these late instar Black Swallowtail caterpillars lingering on the bronze fennel next to the back steps. They are gone now, off to winter over (I hope) in their chrysalises. Failing to find them, I leave the fennel uncut. On a sunny afternoon the warm fennel smell still floats above the foliage.