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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From Wikipedia, the free encyclopedia.

Emerald cockroach wasp

Ampulicidae Parasitic wasps Biological pest control wasps Suicide-inducing parasitism Insects described in Mind-altering parasites. The second sting inhibits the cockroach’s ability to walk spontaneously, or of its own will, but cockroaches can right themselves cojpressa swim while under the influence, and when startled, will jump but not run.

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. They also determined using extracellular bipolar electrodes that neuronal activity was less in comprexsa cockroaches.

While a number of venomous animals paralyze prey as live food for their young, A. The wasp is mostly found in the tropical regions of South AsiaAfricaand the Pacific islands.

A study [3] using radioactive labeling demonstrated that the wasp stings precisely into specific ganglia of the roach. The wasp has a metallic blue-green body, with the thighs of the second and third pair of legs red.

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Individually, all of these substances induce short-term paralysis of the cockroach. The wasp proceeds to chew off half of each of the roach’s antennae. Ampulex compressa Fabricius Retrieved from ” https: Development is faster in the warm season.

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. Wikispecies has information related to Ampulex compressa. It is known for its unusual reproductive behaviorwhich involves stinging a cockroach and using it as a host for its larvae. As a result of this sting, the roach will first groom extensively, and then become sluggish and fail to show normal escape responses.

Ampulexins: A New Family of Peptides in Venom of the Emerald Jewel Wasp, Ampulex compressa.

Ampulex sinensis SaussureChlorampulex striolata Saussure, Sphex compressus Fabricius, Archived from the original ampylex The second sting is administered to the subesophageal ganglion SEG and is much more precise, hence the need for paralysis and is significantly longer.

Basically, it limits the effectiveness of octopamine, the neurotransmitter that controls muscle contraction in sudden movements. Wikimedia Commons has media related to Ampulex compressa. Ampulwx, the fully grown wasp emerges from the roach’s body to begin its adult life. 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.

Ampulex compressa – Wikipedie

The concoction temporarily blocks the motor action potentials in the prothoracic ganglion by depressing cholinergic transmission through the increased chloride conductance across nerve synapses. With its escape reflex disabled, the stung roach simply rests in the burrow as the wasp’s egg hatches after about 3 days.


The venom may disturb the octopaminergic modulation in structures within the roach’s ganglion.

When they are injected together in a ratio of Journal of Comparative Physiology. As early as the s, female wasps of this species were reported to sting a cockroach specifically a Periplaneta americanaPeriplaneta australasiaeor Nauphoeta rhombifolia [1] twice, delivering venom.

The emerald cockroach wasp or jewel wasp Ampulex compressa is a solitary wasp of the family Ampulicidae.

Researchers have simulated this zombie state by injecting procaine into the SEG. The wasp actively searches for the SEG during this sting. Articles with ‘species’ microformats Commons category link is on Wikidata.

Ampulexins: A New Family of Peptides in Venom of the Emerald Jewel Wasp, Ampulex compressa.

It delivers an initial sting to a thoracic ganglion and injects venom to mildly and reversibly paralyze the front legs of its victim. Not Exactly Rocket Science News. This has been unsuccessful ampu,ex of the territorial tendencies of the wasp, and the small scale on which they hunt.

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