If you haven’t already met Ampulex compressa, otherwise known as the jewel wasp, now is as good a time as any. Someday you may be very. Ampulex compressa Trusted Image of Ampulex compressa; Map of Ampulex compressa this page yet. Explore what EOL knows about Ampulex compressa. The Emerald Jewel Wasp Ampulex compressa (Fabricius) is an endoparasitoid of the American cockroach Periplaneta americana (Linnaeus).

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As a result of this sting, the roach will first groom extensively, and then become sluggish compresda fail to show normal escape responses. The venom may disturb the octopaminergic modulation in structures within the roach’s ganglion.

The wasps with the passion for horror: Ampulex compressa

Articles with ‘species’ microformats Commons category link is on Wikidata. Emerald cockroach wasp Ampulex compressa Scientific classification Kingdom: With its escape reflex disabled, the stung roach simply rests in the burrow as conpressa wasp’s egg hatches after about 3 days.

Researchers have simulated this zombie state by injecting procaine into the SEG.

The wasp is mostly found in the tropical regions of South AmpulsxAfricaand the Pacific islands. Wikimedia Commons has media related to Ampulex compressa.

Individually, all of these substances induce short-term paralysis of the cockroach. Journal compressz Comparative Physiology. Not Exactly Rocket Science News. Williams in as a method of biocontrol. The concoction temporarily blocks the motor action potentials in the prothoracic ganglion by depressing cholinergic transmission through the increased chloride conductance across nerve synapses. It then exits and proceeds to fill in the burrow entrance with pebbles, more to keep other predators out than to keep the roach in.


Over a period of 8 days, the wasp larva consumes the roach’s internal organs in an order which wmpulex the likelihood that the roach will stay alive, at least until the larva enters the pupal stage and forms a cocoon inside the roach’s body. Archives of Insect Biochemistry and Physiology.

Ampulex compressa – Wikipedia tiếng Việt

Ampulex sinensis SaussureChlorampulex striolata Saussure, Sphex compressus Fabricius, A study [3] using radioactive labeling demonstrated that the wasp stings precisely into specific ganglia of the roach.

The wasp proceeds to chew off half of each of the roach’s antennae. While a stung roach exhibits drastically reduced survival instincts such as swimming, or avoiding pain for about 72 hours, motor abilities such as flight or flipping over are unimpaired.

Mating takes about a minute, and only one mating is necessary for a female wasp to successfully parasitize several dozen roaches. The first sting is delivered to the prothoracic ganglion mass of nerve tissue which causes a 2— to 3-minute paralysis of the front legs. Retrieved from ” https: When they are injected together in a ratio of In other projects Wikimedia Commons Wikispecies.


Development is faster in the warm season. The metabolic change is thought to preserve nutrients for the wasp larva.

Life History of the Emerald Jewel Wasp Ampulex compressa

Views Read Edit View history. While a number of venomous animals paralyze prey as live food for their young, A. They also determined using extracellular bipolar electrodes that neuronal activity was less in stung cockroaches.

Eventually, the fully grown wasp emerges from the roach’s body to begin its adult life. coompressa

The emerald cockroach wasp or jewel wasp Ampulex compressa is a solitary wasp of the family Ampulicidae. The wasp, which is too small to carry the roach, then leads the victim to the wasp’s burrowby pulling one of the roach’s antennae in a manner similar to a leash.

Adults live for several months. Retrieved 7 December It also causes excessive grooming and alterations in the metabolism of the cockroach.

The flying wasps are more abundant in the warm seasons of the year.