Na 0630 cikin 1 402

Southern black widow

Latrodectus mactans

Yana buƙatar likitaBa kasafai yake kisa ba, amma cizo yana buƙatar likita.

CizoAbinci: Nama

Haɗari ga mutane: Mai tsananiCizo yana buƙatar likita. Mutuwa ba kasafai take faruwa ba.

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

Yana zaune a

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

Arewacin Amurka

Gida

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

Tsawo

8 mm zuwa 1.3 cm (0.3 in zuwa 0.5 in)1

Mafi girman sauri

kusan 0.98 km/h (0.61 mph)

A kan tudu, ƙiyasi

Me yake ci?

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

Hoton Southern black widow — Southern black widow. Hoto: unknown. CC BY 2.0, Wikimedia Commons.

Yadda za ka gane shi

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

Ana yawan rikita shi da: 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

Ƙarfin dafi

Cizo

Dafi yana fitowa ta haƙoransa na dafi ko haƙoransa idan ya ciza.

Me dafinsa yake yi?

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

Yaya haɗarinsa yake ga mutane?

Haɗari ga mutane: Mai tsananiCizo yana buƙatar likita. Mutuwa ba kasafai take faruwa ba.

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

Labari mai daɗi: likitoci suna da magani (antivenom) ko jinya don wannan.1

Idan ya ciji

Ka wanke wurin cizon kuma ka saka ƙanƙara a cikin jaka a kai don ciwon. Ka nemi taimakon likita idan ciwon ya yi ƙarfi, ya bazu ko mutumin bai ji daɗi ba.

Kullum ka fara kiran lambar gaggawa (112, 000, 911). Wannan jagorar agajin gaggawa ce ta gaba ɗaya, ba shawarar likita ba. Muhimman abubuwan agajin gaggawa

Kiyaye lafiya

Kada ka taɓa, kada ka kama, kada ka tsokani dabbar daji, ko da ƙarama ce, kuma ko da tana kama da tana barci ko ta mutu.
Ka ba shi sarari. Idan ka haɗu da ɗaya, ka natsu, ka koma baya a hankali kuma ka bar shi ya bi hanyarsa.
Idan ɗaya ya ciji ka: ka natsu, ka zauna ba motsi, ka kira lambar gaggawarka (112, 000, 911) ko ka je asibiti da sauri. Ka tuna yadda yake, hoto yana taimakawa.

Ba ya neman cutar da kai. Yana amfani da dafinsa don kama abinci ko don kare kansa, kuma ya fi son ya ɓuya. Ƙarin bayani game da kiyaye lafiya

A ina a duniya?

Afirka Asiya Turai Arewacin Amurka Kudancin Amurka Ostareliya da Oceania

Yaya girmansa yake?

Yaya tsawonsa yake?

ƙarami har zai iya zama a kan farcenka

Yaya girman Southern black widow yake idan aka kwatanta da KAI?

Lissafi ne kawai a cikin burauzarka. Ba a adana komai ko a aika ko'ina.

Yaya saurinsa yake?

Kunkuru kusan 0.3 km/h (0.19 mph)

Southern black widow kusan 0.98 km/h (0.61 mph)

Mutum yana tafiya kusan 5 km/h (3.1 mph)

abin da ya kamata a sani

Bayanai

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

Mai karya tatsuniya

Tatsuniya: A black widow bite is usually fatal.

Gaskiya: 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

Don ƙwararru a kan dafi

Sunan kimiyya: Latrodectus mactans
Rukuni: Gizo-gizo
Iyali: Theridiidae2
Tsari: Araneae
Nahiyoyi: Arewacin Amurka
Jarirai: 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
Tsawon rai: kusan shekaru 31
Haɗari ga mutane: 3 / 5: Mai tsanani3

Inda bayanan suka fito

Latrodectus mactans (Wikipedia (CC BY-SA 4.0))
Latrodectus mactans (iNaturalist): sunaye da rarrabuwa.
Venom Wiki: matakin haɗari, girman al'ada da ƙiyasin sauri namu ne. Ga yadda muke lissafa su: Yadda muke auna haɗari.

Kowane bayani a wannan shafi yana da lamba da ke nuna tushensa. Idan mun yi kuskure, ka yi haƙuri, mu masoya dabbobi ne, ba mujallar kimiyya ba. Ka gaya mana a [email protected] kuma za mu gyara.

Kunama tana jin yunwa! Venom Wiki aikin mutum ɗaya ne: kyauta, ba talla kuma ba masu bin diddigi. Ɗan ƙaramin kyauta yana taimakawa wajen ci gaba da kasancewarsa a intanet.Ciyar da kunama