Jewel wasps carve up cockroaches like jack-o’-lanterns in a way scientists have never seen before. By Jason Bittel If you loathe cockroaches, you’re going to love the emerald jewel wasp. Females of ...

If cockroaches had nightmares, the emerald cockroach wasp surely would deserve a prominent place therein. These colorful, tiny parasitic wasps sting American cockroaches twice, once in the midsection ...

Female of the emerald cockroach wasp Ampulex compressa manipulating an American cockroach, which has been made docile by wasp venom and that will serve as food for the wasp larva. If cockroaches had ...