Venom Wiki / Zvisikwa zvose / Madandemutande

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Southern black widow

Latrodectus mactans

Inoda chirembaHaiwanzouraya, asi kurumwa kunoda chiremba.

Madandemutande

InorumaInodya: Nyama

Ngozi kuvanhu: YakakombaKurumwa kunoda chiremba. Kufa hakuwanzoitiki zvachose.

The southern black widow is a venomous spider that lives in North America. Mature females are shiny black with a red hourglass mark on their underside. Its bite can cause pain and other symptoms, but it is rarely fatal to healthy people.1

Inogara mu

Native to North America, mainly the southeastern United States. Also found in Mexico and the Dominican Republic, and established in Hawaii (USA).1

Amerika yeKuchamhembe

Kumba

It builds tangled, three-dimensional cobwebs and waits in a retreat near them. One way it has reached Hawaii is through imported produce.1

Kureba

8 mm kusvika 1,3 cm (0,3 in kusvika 0,5 in)1

Kumhanya kukuru

kunenge 0,98 km/h (0,61 mph)

Pasi pevhu, kufungidzira

Inodya chii?

It eats a variety of insects, and also woodlice, millipedes, centipedes and other spiders. When prey is caught in its web, it rushes out, wraps the prey tightly in silk, and bites it. It then releases digestive enzymes into the wound and carries the prey back to its retreat to feed.1

Mufananidzo waSouthern black widow — Southern black widow. Mufananidzo: unknown. CC BY 2.0, Wikimedia Commons.

Maziviro ayo

Mature females are shiny black, with a red hourglass-shaped mark on the underside of a very rounded abdomen.1
Many females have an orange or red patch on the top of the abdomen, just above the spinnerets.1
Mature females have a body length of 8–13 mm, not counting the legs. Males are 3–6 mm.1
Juveniles look very different. They have a grey to black abdomen with white stripes across it, spotted with yellow and orange.1
Males are either purple, or look more like the juveniles.1

Inowanzovhiringidzwa ne: It is often confused with the false widows (genus Steatoda) and with the closely related northern (L. variolus) and western (L. hesperus) black widows.1

Simba reuturu

Inoruma

Uturu hunobuda nemeno ayo painoruma.

Uturu hwayo hunoitei?

The venom contains alpha-latrotoxin, a neurotoxic venom that attacks the nerves. It causes pain and other symptoms, which are collectively called latrodectism.1

Ine ngozi yakadii kuvanhu?

Ngozi kuvanhu: YakakombaKurumwa kunoda chiremba. Kufa hakuwanzoitiki zvachose.

Deaths in healthy adults are exceedingly rare. No deaths were reported among 23,409 documented Latrodectus bites in the US from 2000 to 2008, though about 2,000 bites happen each year. Only mature females can bite people.1

Mashoko akanaka: vanachiremba vane mushonga (antivenom) kana kurapwa kwechinhu ichi.1

Kana ikaruma

Geza parumwa woisa pakiti yechando kuderedza marwadzo. Wana rubatsiro rwechiremba kana marwadzo akanyanya, achipararira kana munhu asinganzwi zvakanaka.

Gara uchitanga wafonera nhamba yechimbichimbi (112, 000, 911). Iri izano rakajairika rerubatsiro rwekutanga, kwete zano rechiremba. Zvakakosha zverubatsiro rwekutanga

Gara wakachengeteka

Usambobata mhuka yesango, kuedza kuitora kana kuinetsa, kunyange iri diki, uye kunyange ichiita seyakarara kana yakafa.
Ipa nzvimbo. Kana ukasangana nayo, dzikama, dzokera shure zvishoma nezvishoma uirege iende nenzira yayo.
Kana imwe ikakuruma: dzikama, gara wakanyarara, fonera nhamba yechimbichimbi (112, 000, 911) kana kuti enda kuchipatara nokukurumidza. Rangarira kuti yaitaridzika sei, mufananidzo unobatsira.

Haisi kukutsvaga. Inoshandisa uturu hwayo kubata chikafu kana kuzvidzivirira, uye inotonyanya kuda kuhwanda. Zvimwe pamusoro pekugara wakachengeteka

Kupi pasi rose?

Afrika Asia Yuropu Amerika yeKuchamhembe Amerika yeKumaodzanyemba Australia neOceania

Yakakura sei?

Yakareba zvakadii?

diki zvekuti inokwana panzara yako

Southern black widow yakakura sei kana yaenzaniswa NEWE?

Masvomhu chete mubrowser yako. Hapana chinochengetwa kana kutumirwa kupi zvako.

Inomhanya zvakadii?

Kamba kunenge 0,3 km/h (0,19 mph)

Southern black widow kunenge 0,98 km/h (0,61 mph)

Munhu achifamba kunenge 5 km/h (3,1 mph)

zvakanaka kuziva

Chokwadi

In 1933, Allan Blair let himself be bitten by one of these spiders to study its venom in humans and to convince sceptics that it could be dangerous.1

Females will occasionally eat their mates after reproduction.1

Only mature females can bite people. Their hollow, needle-like mouthparts are about 1 mm long, which is long enough to inject venom into people.1

The brown widow (Latrodectus geometricus) competes with black widows for territory. In areas where they share space, it can displace them.1

Males live only about three to four months, while females can live for up to three years.1

Kuputsa ngano

Ngano: A black widow bite is usually fatal.

Chokwadi: Black widow bites are rarely fatal to healthy people. No deaths from the US species were reported among 23,409 documented bites from 2000 to 2008.1

Kune nyanzvi dzeuturu

Zita resainzi: Latrodectus mactans
Boka: Madandemutande
Mhuri: Theridiidae2
Odha: Araneae
Makondinendi: Amerika yeKuchamhembe
Vacheche: A female can produce four to nine egg sacs in one summer, each holding about 100–400 eggs, which she guards in a silken container.1
Makore ekurarama: kunenge makore 31
Ngozi kuvanhu: 3 / 5: Yakakomba3

Kwakabva chokwadi

Latrodectus mactans (Wikipedia (CC BY-SA 4.0))
Latrodectus mactans (iNaturalist): mazita nekurongwa kwemhuka.
Venom Wiki: danho rengozi, saizi yakajairika nekufungidzira kwekumhanya ndezvedu. Ona kuti tinozviwana sei: Matinoyera ngozi.

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