| Emerald cockroach wasp | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Ampulicidae |
| Genus: | Ampulex |
| Species: | A. compressa
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| Binomial name | |
| Ampulex compressa (Fabricius, 1781)
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| Synonyms | |
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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.