Stink Bug laying eggs under an Alder leaf
The half-formed wings indicate that this is a nymph. But, I don't know what it will become when mature.
Aphids under a leaf. There are a few adults and many nymphs. One adult is winged. There are also two "aphid-lions" - larvae - each feeding on an aphid nymph. Many of the aphids are lined up along the main vein of the leaf - or an offshoot of the main vein - feeding.