Several days ago, a cluster of bright yellow spherical eggs appeared on the underside of one of our milkweed plants (Asclepias syriaca) in the garden. I have no idea what they are. Ladybird beetle eggs can be yellow but are, I think, more elongated.
This morning I found a group of orange eggs on the swamp milkweed (Asclepias incarnata) out back. These I suspect are from a swamp milkweed leaf beetle.
I'll be holding both groups until they hatch just to see what they are.