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Noble false widow

Steatoda nobilis

Apie pavadinimą: It is called a false widow because it looks like the black widow spider, although it belongs to a different group of spiders.1

Tik skaudaSkauda, bet rimtai tau nepakenks.

Vorai

ĮkandimaiĖda: Mėsa

Pavojus žmonėms: SkausmingasGali labai skaudėti, bet beveik niekada nebūna rimta.

The noble false widow is a spider that looks a lot like the black widow, which is why it has its name. It is now found in many parts of the world, including Europe, the United States and New Zealand, and it is one of the world's most invasive spiders. Its bite can be painful, so it is worth knowing what it looks like.1

Gyvena

Native to Madeira and the Canary Islands. Now established across Europe, parts of the USA, North Africa, Chile, Colombia, Ecuador and New Zealand.1

Europa, Afrika

Pradžia

It lives both indoors and outdoors all year round, in places such as cacti, agave, roadside cuttings, demolished buildings, telegraph poles, concrete fence posts and ivy on walls. Seaside cities and villages with a mild climate are especially good places for it.1

Ilgis

nuo 7 mm iki 1,4 cm (nuo 0,3 in iki 0,6 in)1

Didžiausias greitis

apie 0,86 km/h (0,53 mylių/h)

Sausumoje, apytikslis spėjimas

Ką jis ėda?

It eats both insects and other spiders, woodlice, and small vertebrates such as pipistrelle bats and a pygmy shrew. It catches prey with an 'attack wrap', wrapping silk around the victim while it bites, and its venom quickly paralyses the prey.1

Noble false widow: nuotrauka — Noble false widow. Nuotrauka: Dustin Edmundson. CC BY 4.0, iNaturalist.

Kaip jį atpažinti

The abdomen (rear body) is brown and rounded, with cream markings that are often said to look like a skull.1
The legs are reddish-orange.1
Adult females are about 9.5 to 14 mm in size, and males are about 7 to 11 mm.1
It is larger than other spiders in its genus, Steatoda, and has a typical colour pattern.1

Dažnai painiojamas su: It is often mistaken for the black widow (Latrodectus) and other false widow species. It can be told apart from the black widow by its larger size within its genus and its typical colouring, though many spiders in this group look similar.1

Nuodų galia

Įkandimai

Nuodai išeina per iltis ar dantis, kai jis įkanda.

Ką daro jo nuodai?

Most of its venom is made of toxins similar to those of the widow spiders, mainly alpha-latrotoxin. This toxin makes holes in nerve cells, which releases chemical messengers and blocks the signals between nerves and muscles, causing paralysis. In people, the venom is most noticeable as pain at the bite site, along with swelling, redness and fever.1

Koks jis pavojingas žmonėms?

Pavojus žmonėms: SkausmingasGali labai skaudėti, bet beveik niekada nebūna rimta.

It is considered moderately medically significant. Most bites cause symptoms similar to a bee or wasp sting, but some can be more serious, partly because of bacteria. It is considered one of the most dangerous spiders in western Europe. Bites from males are less severe than bites from females, and the bite itself is usually painless, with pain coming from the venom.1

Jei jis įkanda

Without proper treatment, a bite wound can become infected and develop into gangrene or sepsis, so medical care should be sought.1
Nuplauk įkandimą ir nuo skausmo uždėk ledo maišelį. Kreipkis medicininės pagalbos, jei skausmas stiprus, plinta arba žmogus jaučiasi blogai.

Visada pirmiausia skambink pagalbos numeriu (112, 000, 911). Tai bendri pirmosios pagalbos patarimai, o ne medicininė konsultacija. Pirmosios pagalbos pagrindai

Būk saugus

Niekada neliesk, negaudyk ir neerzink laukinio gyvūno, net mažo, ir net jei jis atrodo miegantis ar negyvas.
Palik jam vietos. Jei tokį sutiksi, išlik ramus, lėtai atsitrauk ir leisk jam eiti savo keliu.
Jei toks tau įkando: išlik ramus, nejudėk, skambink pagalbos numeriu (112, 000, 911) arba greitai vyk į ligoninę. Įsimink, kaip jis atrodė, nuotrauka padeda.

Jis nesiruošia tavęs medžioti. Nuodus jis naudoja maistui sugauti arba apsiginti ir daug mieliau pasislėptų. Daugiau apie saugumą

Kur pasaulyje?

Afrika Azija Europa Šiaurės Amerika Pietų Amerika Australija ir Okeanija

Koks jis didelis?

Koks jis ilgas?

toks mažas, kad tilptų ant tavo nago

Koks didelis Noble false widow, palyginti su TAVIMI?

Tik matematika tavo naršyklėje. Niekas neišsaugoma ir niekur nesiunčiama.

Koks jis greitas?

Vėžlys apie 0,3 km/h (0,19 mph)

Noble false widow apie 0,86 km/h (0,53 mph)

Einantis žmogus apie 5 km/h (3,1 mph)

verta žinoti

Faktai

The spider often catches prey much larger than itself, including bats, because its venom works quickly.1

It can survive without drinking water, getting all its liquid from its prey.1

Males court females by tapping the web and vibrating their bodies, and they can make scraping sounds with their abdomens.1

It has poor eyesight and relies mainly on vibrations travelling through its web.1

It produces three-dimensional cobwebs, and its silk is unusually strong for its genus.1

One adult female lived almost five and a half years in captivity, and adult females are long-lived.1

Mitų griovėjas

Mitas: It is the same spider as the black widow.

Tiesa: It only looks similar to the black widow. It belongs to the genus Steatoda, while the black widow belongs to the genus Latrodectus.1

Nuodų ekspertams

Mokslinis pavadinimas: Steatoda nobilis
Grupė: Vorai
Šeima: Theridiidae2
Tvarka: Araneae
Žemynai: Europa, Afrika
Mažyliai: Females make egg sacs containing an average of 94 eggs, with a range of 34 to 208 eggs. The young hatch inside the egg sac about 18 days after the eggs are laid.1
Gyvenimo trukmė: apie 5 metų1
Pavojus žmonėms: 2 / 5: Skausmingas3

Iš kur faktai

Steatoda nobilis (Wikipedia (CC BY-SA 4.0))
Steatoda nobilis (iNaturalist): pavadinimai ir klasifikacija.
Venom Wiki: pavojaus lygis, tipiškas dydis ir greičio spėjimas yra mūsų pačių. Pažiūrėk, kaip juos apskaičiuojame: Kaip vertiname pavojų.

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