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Sawir kartoon ah oo Southern black widow
Lambar 0630 ee 1 402

Southern black widow

Latrodectus mactans
Wuxuu u baahan yahay dhakhtarDhif ayuu dilaa, laakiin qaniinyo waxay u baahan tahay dhakhtar.
Caarooyin QaniinWuxuu cunaa: Hilib
Khatarta dadka: HalisQaniinyo waxay u baahan tahay dhakhtar. Dhimashadu aad bay u yar tahay.

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

Wuxuu ku nool yahay
Native to North America, mainly the southeastern United States. Also found in Mexico and the Dominican Republic, and established in Hawaii (USA).1
Waqooyiga Ameerika
Bogga hore
It builds tangled, three-dimensional cobwebs and waits in a retreat near them. One way it has reached Hawaii is through imported produce.1
Dherer
8 mm ilaa 1.3 cm (0.3 in ilaa 0.5 in)1
Xawaaraha ugu sarreeya
qiyaastii 0.98 km/saac (0.61 mayl/saac)
Dhulka, qiyaas qallafsan
Muxuu cunaa?
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
Run ahaan!Sawirka Southern black widow
Southern black widow. Sawir: unknown. CC BY 2.0, Wikimedia Commons.

Sida loo aqoonsado

  • 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

Inta badan lagu khaldaa: 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

Awoodda sunta

Qaniin

Suntu waxay ka soo baxdaa ilkihiisa sunta ama ilkihiisa marka uu qaniino.

Maxay samaysaa suntiisa (qaniin ama mudid)?

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

Intee buu dadka khatar ugu yahay?

Khatarta dadka: HalisQaniinyo waxay u baahan tahay dhakhtar. Dhimashadu aad bay u yar tahay.

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

War wanaagsan: dhakhaatiirtu waxay leeyihiin daawo (antivenom) ama daaweyn tan loogu talagalay.1

Haddii uu qaniino

  • Dhaq meesha la qaniinay oo saar kiish baraf ah xanuunka dartiis. Hel caawimaad caafimaad haddii xanuunku xoog badan yahay, faafo ama qofku dareemo inuu xanuunsan yahay.

Marka hore had iyo jeer wac lambarka gurmadka degdegga ah (112, 000, 911). Kani waa hage guud oo gargaar degdeg ah, ma aha talo caafimaad. Aasaaska gargaarka degdegga ah

Badbaado

  • Weligaa ha taaban, ha qaban, hana ku ciyaarin xayawaan duurjoog ah, xitaa mid yar, xitaa haddii uu u muuqdo inuu hurdo ama dhintay.
  • Meel u bannee. Haddii aad mid la kulanto, deg, tartiib dib ugu noqo oo u daa inuu jidkiisa maro.
  • Haddii mid ku qaniino: deg, ha dhaqaaqin, wac lambarka gurmadka degdegga ah (112, 000, 911) ama si degdeg ah u tag isbitaalka. Xusuuso sida uu u egyahay, sawir ayaa caawiya.

Kuma raadinayo. Suntiisa wuxuu u isticmaalaa inuu cunto ku qabsado ama isku difaaco, wuxuuna aad u door bidaa inuu dhuunto. Wax badan oo ku saabsan badbaadada

Adduunka xaggee?

AfrikaAasiyaYurubWaqooyiga AmeerikaKoonfurta AmeerikaAwstaraaliya iyo Oceania

Intee buu le'eg yahay?

Intee buu dherer le'eg yahay?

Southern black widow qiyaastii 1.3 cm dherer (0.5 in)Xabbad bariis ah qiyaastii 7 mm (0.3 in)Qadaadiic 1 yuuro ah qiyaastii 2.3 cm (0.9 in)
aad u yar oo ciddiyahaaga dul fadhiisan kara

Intee buu Southern black widow le'eg yahay marka ADIGA laguu barbar dhigo?

Xisaab keliya oo browser-kaaga ku jirta. Waxba lama keydiyo, meelna looma diro.

Intee buu u dheereeyaa?

waa wanaagsan tahay in la ogaado

Xaqiiqooyin

1

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

2

Females will occasionally eat their mates after reproduction.1

3

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

4

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

5

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

Beeniye-jabiye

Khuraafaad: A black widow bite is usually fatal.

Run: 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

Khubarada sunta

Magaca sayniska
Latrodectus mactans
Koox
Caarooyin
Qoys
Theridiidae2
Kala horreynta
Araneae
Qaaradaha
Waqooyiga Ameerika
Carruurta yaryar
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
Cimri
qiyaastii 3 sano1
Khatarta dadka
3 / 5: Halis3

Meesha xaqiiqooyinku ka yimaadaan

  1. Latrodectus mactans (Wikipedia (CC BY-SA 4.0))
  2. Latrodectus mactans (iNaturalist): magacyada iyo kala soocidda.
  3. Venom Wiki: heerka khatarta, cabbirka caadiga ah iyo qiyaasta xawaaraha annaga ayaa sameeyay. Eeg sida aan u xisaabinno: Sida aan u qiimeyno khatarta.

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