I talked about your question with my friend Allan Felsot. He’s an insect scientist at Washington State University. He told me cocoons are mostly silk. But they’re usually made by moths. A butterfly ...

John E. Woodmansee Photo: Tobacco hornworm on a tomato plant that has been attacked by a parasitic Braconid wasp. The white capsules on its back are the pupal stage of the tiny wasp. Braconid larvae ...

Pesky wasps once fed upon the insects gorging on rotting dinosaur eggs some 70 million years ago, suggests a new finding of ancient wasp cocoons hidden inside the fossilized egg of a titanosaur ...