I LOVE this clearwing moth. The raspberry crown borer (Pennisetia marginata) is a Batesian mimic of (I think) Vespula maculifrons and V. pensylvanica, our native yellow jackets. If you’re mildly impressed by the resemblance, you should see them in flight or walking around a leaf. They have completely nailed the cocky, jerky yellow jacket attitude. I can’t seem to find a video to link to, but this is a related species. If you live near a big patch of raspberry or blackberry, go look for them right now … they are out mating and laying eggs.
Saw this fly ovipositing onto a recently toppled tree, in Clayton Park, New Jersey. Pretty sure it’s Milesia virginiensis (Diptera), the yellowjacket hover fly. It was large enough, though, to gave me pause for a few seconds. Syrphids I’m familiar with are much smaller, and never really register as wasps. A rather convincing mimic.