What is "emerald cockroach wasp"

n. A species of cockroach wasp, (taxlink Ampulex compressa species noshow=1).

The emerald cockroach wasp or jewel wasp (Ampulex compressa) is a solitary wasp of the family Ampulicidae. It is known for its unusual reproductive behavior, which involves stinging a cockroach and using it as a host for its larvae. It thus belongs to the entomophagous parasites.