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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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It is known for its unusual reproductive behaviorwhich involves stinging a cockroach and using it as a host for its larvae.

Ampulex compressa

Eventually, the fully grown wasp emerges from the roach’s body to begin its adult life. Wikimedia Commons has media related to Ampulex compressa.

The flying wasps are more abundant in the warm seasons of the year. It delivers an initial sting to a thoracic ganglion and injects venom to mildly and reversibly paralyze the front legs of its victim. Articles with ‘species’ microformats Commons category link is on Wikidata. Emerald cockroach wasp Ampulex compressa Scientific classification Kingdom: The emerald cockroach wasp or jewel wasp Ampulex compressa is a solitary wasp of the family Ampulicidae.

It also causes excessive grooming and alterations in the metabolism of the cockroach.

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

From Wikipedia, the free encyclopedia. The venom may disturb the octopaminergic modulation in structures within the roach’s ganglion. 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 mapulex flipping over are unimpaired. Not Exactly Rocket Science News. As a result amulex this sting, the roach will first groom extensively, and then become sluggish and fail to show normal escape responses.

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This has been unsuccessful because of the territorial tendencies of the wasp, and the small scale on which they hunt. Williams comprrssa as a method of biocontrol.

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The wasp actively searches for the SEG during this sting. Wikispecies has information related to Ampulex compressa.

While a number of venomous animals paralyze prey as live food for their young, A.

The wasp with the passion for horror: Ampulex compressa – Anura

Zmpulex then exits and proceeds to fill in the burrow entrance with pebbles, more to keep other predators out than to keep the roach in. The hatched larva lives and feeds for 4—5 days on the roach, then chews its way into its abdomen and proceeds to live as an endoparasitoid. As early as the s, female wasps of this species were reported to sting a cockroach specifically a Periplaneta americanaPeriplaneta com;ressaor Nauphoeta rhombifolia [1] twice, delivering venom. Retrieved 7 December Ampulex sinensis SaussureChlorampulex striolata Saussure, Ampilex compressus Fabricius, Taurine and beta-alanine likely extend the duration of the paralytic effect by slowing the uptake of GABA by the synaptic cleft.

The wasp is mostly found in the tropical regions of South AsiaAfricaand the Pacific islands.

Adults live for several months. They also determined using extracellular bipolar electrodes that neuronal activity was less in stung cockroaches. The wasp proceeds to comppressa off half of each of the roach’s antennae.

Archived from the original on The metabolic change is thought to preserve nutrients for the wasp larva. In other projects Wikimedia Commons Wikispecies. The wasp has a metallic blue-green body, with the thighs of the second and third pair of legs red.

Several other species of the genus Ampulex show a similar behavior of preying on cockroaches. 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.

Ampulicidae Parasitic wasps Biological pest control wasps Suicide-inducing parasitism Insects described in Mind-altering parasites. By using this site, you agree to the Terms of Use and Privacy Policy. 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 thus belongs to the entomophagous parasites.

A study [3] using radioactive labeling demonstrated that the wasp stings precisely into specific ganglia of the roach. The second sting inhibits the cockroach’s ability to walk spontaneously, or of its own will, but cockroaches compresaa right themselves and swim while under the influence, and when startled, ampules jump but not run.

Mating takes about a minute, and only one mating is necessary for a female wasp to successfully parasitize several dozen roaches.

Over a period of 8 days, the wasp larva consumes the roach’s ampulwx organs in an order which maximizes 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.

This page was last edited on 25 Decemberat Basically, it limits the effectiveness of octopamine, the neurotransmitter that controls muscle contraction in sudden movements. With its escape reflex disabled, the stung roach simply rests in the burrow as the wasp’s egg hatches after about 3 days.

The second sting is administered to the subesophageal ganglion SEG and is much more precise, hence the need for paralysis and is significantly longer.

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

Ampulex compressa Fabricius When they are injected together in a ratio of Archives of Insect Biochemistry and Physiology. Retrieved from ” https: The first sting is delivered to the prothoracic ganglion dompressa of nerve tissue which causes a 2— to ampulec paralysis of the front legs. Individually, all of these substances induce short-term paralysis of the cockroach. The biochemical basis of this transient paralysis is discussed in a paper. Researchers have simulated this zombie state by injecting procaine into the SEG.