Tuliptree

Last year’s fruit, found like this, split right in half, with one of this year’s in the background.
The leaves were glistening in the hot sun, sticky with honeydew. Aphids were at work.
Assuming these are Tuliptree Aphids (Illinoia liriodendri).
Some kind of leaf-spotting fungus

And turn a leaf over. Hugging the center: a tree cricket nymph of the genus Oecanthus!