I found these on willow leaves and I'm interested in whether there is a relationship with the eggs and larvae. The larvae are in different stages but generally in close groups. Some of them still clustered in their groups, others hanging from the underside of leaves. Then I found the neat little groups of eggs. I've gone through all of my Florida butterfly books and can't find any listed butterfly that lays yellow eggs in groups on willow leaves. And the larvae DON'T resemble butterfly or moth caterpillars. I'm hoping someone can help.