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Katuni ya South American black widow
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South American black widow

Latrodectus curacaviensis
Anahitaji daktariMara chache huua, lakini kuumwa kunahitaji daktari.
Buibui KuumwaHula: Wadudu
Hatari kwa watu: MbayaKuumwa kunahitaji daktari. Vifo ni nadra sana.

The South American black widow is a spider from the Lesser Antilles and South America. Females have a red and black pattern and a venomous bite. It is mainly active at night, and it is not aggressive towards people.1

Anaishi
Lesser Antilles and South America, including Brazil1
Amerika Kaskazini, Amerika Kusini
Nyumbani
It is usually found under logs, in sheds, in stone fireplaces, and near trash and debris, so people may meet it around homes and outbuildings.1
Urefu
1.1 cm hadi 1.7 cm (0.4 in hadi 0.7 in)1
Kasi ya juu
takriban km 0.92 kwa saa (maili 0.57 kwa saa)
Nchi kavu, makadirio
Hula nini?
It feeds on small insects.1
Kweli kabisa!Picha ya South American black widow
South American black widow. Picha: Renato Brito. CC BY 4.0, iNaturalist.

Jinsi ya kumtambua

  • Females grow up to 11–17 mm and have a black and red body and legs.1
  • Males are much smaller, have long legs, and are white or brown.1
  • Females have an hourglass mark with a black diamond shape and four red triangles in a square.1
  • It is mainly nocturnal, so it is most active at night.1

Nguvu ya sumu

Kuumwa

Sumu hutoka kupitia meno yake ya sumu au meno anapouma.

Sumu yake hufanya nini?

The venom contains excitatory neurotoxins (alpha-latrotoxins), which overstimulate the nerves. Bites usually deliver only small amounts of venom. Symptoms can include intense pain at the bite, sweating, rapid breathing, a faster heart rate, swollen eyelids, salivation, stiff and painful abdominal muscles, nausea, vomiting and blurred sight. Some cases have also involved muscle spasms, fever and chills, which are common symptoms of latrodectism (the illness caused by black widow venom).1

Ana hatari gani kwa watu?

Hatari kwa watu: MbayaKuumwa kunahitaji daktari. Vifo ni nadra sana.

Bites usually deliver only small amounts of venom, but they can cause dangerous symptoms, mostly in children, older people, and people with heart or breathing problems.1

Hufanya nini akiogopa?

It is not aggressive to humans, but females will attack to defend their egg sacs.1

Akiuma

  • Osha jeraha na uweke barafu kupunguza maumivu. Tafuta msaada wa kitabibu kama maumivu ni makali, yanasambaa au mtu anajisikia vibaya.

Daima piga namba ya dharura kwanza (112, 000, 911). Huu ni mwongozo wa jumla wa huduma ya kwanza, si ushauri wa kitabibu. Misingi ya huduma ya kwanza

Kaa salama

  • Kamwe usimguse, kumkamata wala kumchokoza mnyama wa porini, hata akiwa mdogo, na hata akionekana amelala au amekufa.
  • Mpe nafasi. Ukikutana naye, tulia, rudi nyuma polepole na umwache aende zake.
  • Akikuuma: tulia, usitikisike, piga namba yako ya dharura (112, 000, 911) au nenda hospitali haraka. Kumbuka alivyoonekana, picha husaidia.

Hakuwindi wewe. Hutumia sumu yake kukamata chakula au kujilinda, na hupendelea zaidi kujificha. Zaidi kuhusu kukaa salama

Wapi duniani?

AfrikaAsiaUlayaAmerika KaskaziniAmerika KusiniAustralia na Oceania

Ana ukubwa gani?

Ana urefu gani?

South American black widow urefu wa takriban 1.7 cm (0.7 in)Punje ya mchele takriban 7 mm (0.3 in)Sarafu ya euro 1 takriban 2.3 cm (0.9 in)
mfupi kuliko kidole chako kidogo

South American black widow ana ukubwa gani ukilinganisha na WEWE?

Ni hesabu tu kwenye kivinjari chako. Hakuna kinachohifadhiwa wala kutumwa popote.

Ana kasi gani?

inafaa kujua

Ukweli

1

Some reports describe priapism, a painful and prolonged erection in men, after a bite.1

2

In a case in the Brazilian state of Amazonas, the victim had muscle spasms, fever, chills and heavy sweating.1

3

Females are much bigger than males, which is common among black widow spiders.1

4

Males are easy to tell apart from females because of their long legs and white or brown colour.1

5

This spider is mainly active at night, so most encounters are likely after dark.1

Kuvunja dhana potofu

Dhana potofu: Black widow spiders are aggressive and will attack people.

Ukweli: This species is not aggressive to humans. Females only attack when they are defending their egg sacs.1

Kwa wataalamu wa sumu

Jina la kisayansi
Latrodectus curacaviensis
Kundi
Buibui
Familia
Theridiidae2
Mpangilio
Araneae
Mabara
Amerika Kaskazini, Amerika Kusini
Watoto
Females guard their egg sacs and will attack to defend them.1
Hatari kwa watu
3 / 5: Mbaya3

Ukweli unatoka wapi

  1. Latrodectus curacaviensis (Wikipedia (CC BY-SA 4.0))
  2. Latrodectus curacaviensis (iNaturalist): majina na uainishaji.
  3. Venom Wiki: kiwango cha hatari, ukubwa wa kawaida na makadirio ya kasi ni yetu wenyewe. Ona jinsi tunavyovipata: Jinsi tunavyopima hatari.

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Zaidi kutoka kundi hilohilo: Buibui

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Pia anaishi: Amerika Kaskazini

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Mlishe ngekibubu cha michango, kinaiweka bure