Beautiful Butterfly eggs “Nymphalis Antiopa"

This morning we found about half of the egg cluster had already hatched. The newborn larvae have that typical nymphalid look with the dark colored heads and smooth, long and tube-like, yellow colored body. Surprisingly, they didn't seem quite as well organized as some other gregarious species we have reared despite the fact that there are so many of them together. The larvae more or less just swarmed around the willow leaf in clumps but not lining up together or forming any kind of organized group.