Nasonia parasitoids

This genus parasitizes fly pupa, present in bird nest , carcasses and dung. It is widely used for genetic and neurobiological studies. They are often named Jewel wasps, a name that is also used for the Emerald cockroach wasp, Ampulex compressa

A female jewel wasp drilling with her ovipositor in the pupa of a bluebottle blowfly. She can lay some 20-30 eggs in this host, which complete their development to adult within 2-3 weeks inside the host pupa