Argiope bruennichi
Encyclopedia
Argiope bruennichi, or the wasp spider, is a species of orb-web spider
Spider
Spiders are air-breathing arthropods that have eight legs, and chelicerae with fangs that inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all other groups of organisms...

 distributed throughout central Europe, Northern Europe, north Africa and parts of Asia. Like many other members of the genus Argiope
Argiope
-Greek Mythological Persons:* Argiope, a Naiad, a daughter of the River God Nile. She was wife of Agenor and mother of his children. More commonly known as Telephassa...

, (including St Andrew's Cross spiders), it shows striking yellow and black markings on its abdomen.

The spider builds a spiral orb web
Spider web
A spider web, spiderweb, spider's web or cobweb is a device built by a spider out of proteinaceous spider silk extruded from its spinnerets....

 at dawn or dusk, commonly in long grass a little above ground level, taking it approximately an hour. The prominent zigzag shape called the stabilimentum
Web decorations
A web decoration or stabilimentum is a conspicuous silk structure included in the webs of some species of orb-web spider...

, or web decoration, featured at the centre of the orb is of uncertain function, though it may be to attract insects.

When a prey item is first caught in the web, Argiope bruennichi will quickly immobilise its prey by wrapping it in silk. The prey is then bitten and then injected with a paralysing venom
Venom
Venom is the general term referring to any variety of toxins used by certain types of animals that inject it into their victims by the means of a bite or a sting...

 and a protein dissolving enzyme.

The male of the species is much smaller than the female. It can often be seen in or near a female's web waiting for her to complete her final moult, at which time she reaches sexual maturity. At this time her chelicerae (jaws) will be soft for a short time and the male may mate with the female without the danger of being eaten.

During Summer 2006, research was carried out in the UK to find that there has been an influx of these spiders to the UK. The colour is still similar, although the yellow stripes are a bit more cream coloured.

This species of spider was featured in the Movie Eight Legged Freaks
Eight Legged Freaks
Eight Legged Freaks is a 2002 comedy horror directed by Ellory Elkayem and stars David Arquette, Kari Wührer and Scott Terra. The plot concerns a collection of spiders that are exposed to toxic waste, causing them to grow to gigantic proportions and begin killing and harvesting...

 as the main species antagonists

There is one subspecies currently recognized:
  • Argiope bruennichi nigrofasciata Franganillo, 1910 (Portugal)

External links

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