Venom Wiki
Igishushanyo cya Noble false widow
No. 0678 kuri 1 402

Noble false widow

Steatoda nobilis
Ibyerekeye izina: It is called a false widow because it looks like the black widow spider, although it belongs to a different group of spiders.1
Irababaza gusaIrababaza, ariko ntizakugirira nabi bikomeye.
Ibitagangurirwa IrarumaIrya: Inyama
Akaga ku bantu: IrababazaIshobora kubabaza cyane, ariko hafi ya buri gihe nta kibazo gikomeye biteza.

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

Iba muri
Native to Madeira and the Canary Islands. Now established across Europe, parts of the USA, North Africa, Chile, Colombia, Ecuador and New Zealand.1
Uburayi, Afurika
Ahabanza
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
Uburebure
7 mm kugeza kuri 1,4 cm (0,3 in kugeza kuri 0,6 in)1
Umuvuduko wo hejuru
hafi 0,86 km/h (0,53 mph)
Ku butaka, ikigereranyo cy'ugereranyije
Irya iki?
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
Koko!Ifoto ya Noble false widow
Noble false widow. Ifoto: Dustin Edmundson. CC BY 4.0, iNaturalist.

Uko wayimenya

  • 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

Ikunze kwitiranywa na: 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

Imbaraga z'ubumara

Iraruma

Ubumara busohokera mu menyo yayo y'ubumara cyangwa mu yandi menyo iyo iriye.

Ubumara bwayo bukora iki?

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

Iteje akaga kangana iki ku bantu?

Akaga ku bantu: IrababazaIshobora kubabaza cyane, ariko hafi ya buri gihe nta kibazo gikomeye biteza.

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

Niba iruma

  • Without proper treatment, a bite wound can become infected and develop into gangrene or sepsis, so medical care should be sought.1
  • Oza aho yarumye kandi uhashyire agapaki k'urubura kubera ububabare. Shaka ubufasha bwa muganga niba ububabare bukabije, bukwirakwira cyangwa umuntu yumva atameze neza.

Buri gihe banza uhamagare nimero y'ubutabazi (112, 000, 911). Izi ni inama rusange z'ubutabazi bw'ibanze, si inama za muganga. Ibanze by'ubutabazi bw'ibanze

Irinde akaga

  • Ntuzigere ukora, ufata cyangwa ushotora inyamaswa yo mu gasozi, nubwo yaba ntoya, kandi nubwo yasa n'isinziriye cyangwa yapfuye.
  • Yihe umwanya. Niba uhuye n'imwe, tuza, usubire inyuma buhoro buhoro kandi uyireke yigendere.
  • Niba imwe ikurumye: tuza, ntunyeganyege, hamagara nimero y'ubutabazi (112, 000, 911) cyangwa ujye ku bitaro vuba. Ibuka uko yasaga, ifoto irafasha.

Ntigushakisha ngo ikugirire nabi. Ikoresha ubumara bwayo kugira ngo ifate ibyo kurya cyangwa yirinde, kandi ikunda cyane kwihisha. Ibindi ku kwirinda

Ingana gute?

Ireshya ite?

Noble false widow ireshya hafi 1,4 cm (0,6 in)Impeke y'umuceri hafi 7 mm (0,3 in)Igiceri cy'ayero 1 hafi 2,3 cm (0,9 in)
ntoya ku buryo yakwicara ku nzara yawe

Noble false widow ingana ite ugereranyije NAWE?

Ni imibare gusa ikorerwa muri mudasobwa yawe. Nta kintu kibikwa cyangwa cyoherezwa ahandi.

Yihuta gute?

bikwiye kumenywa

Ibintu by'ukuri

1

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

2

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

3

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

4

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

5

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

6

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

Usenya ibinyoma

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

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

Ku bahanga mu by'ubumara

Izina rya siyansi
Steatoda nobilis
Itsinda
Ibitagangurirwa
Umuryango
Theridiidae2
Itsinda rinini (order)
Araneae
Imigabane
Uburayi, Afurika
Abana bato
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
Igihe ibaho
hafi imyaka 51
Akaga ku bantu
2 / 5: Irababaza3

Aho ibintu bivugwa bituruka

  1. Steatoda nobilis (Wikipedia (CC BY-SA 4.0))
  2. Steatoda nobilis (iNaturalist): amazina n'ibyiciro.
  3. Venom Wiki: urwego rw'akaga, ingano isanzwe n'ikigereranyo cy'umuvuduko ni ibyacu bwite. Reba uko tubibara: Uko tugena akaga.

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