egg case

The size of this egg-case depends on the size of the species, ranging from three to about eight inches in length.

How the cockroach deposits its egg-case; a study in insect behavior.

A similar structure, as the egg-case of spiders, earthworms, etc.

This egg case is often known as the "mermaid collar," on account of its striking resemblance to a collar.

The wasp tried to oviposit into the egg case but was upset and pursued by the cockroach.