Insect eggs can be quite mysterious and amazing.
Unfortunately these photos don’t show well, but the eggs are covered with ridges and grooves, and sparkle with minature rainbows.
We found them attached to an acacia leaf. The next day they hatched into tiny caterpillars.
Have you ever found insect eggs? Try looking at some under a magnifying lens or microscope.
Edit: If you want to see what these eggs hatched into, check here.
Looks like eggs I recently photographed. These eggs were apparently laid on a spider’s web, so it’s probably a different species from yours, but the eggs look the same to me.
http://bugguide.net/node/view/521863
I followed your link. I think the mother was pretty irresponsible to lay on a spider silk, too.