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South American black widow

Latrodectus curacaviensis

Potreben je zdravnikLe redko smrtno nevarno, a po ugrizu je potreben zdravnik.

UgriziJe: Žuželke

Nevarnost za ljudi: ResnoPo ugrizu je potreben zdravnik. Smrtni primeri so zelo redki.

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

Živi v

Lesser Antilles and South America, including Brazil1

Severna Amerika, Južna Amerika

Domov

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

Dolžina

1,1 cm do 1,7 cm (0,4 in do 0,7 in)1

Največja hitrost

približno 0,92 km/h (0,57 mph)

Na kopnem, groba ocena

Kaj je?

It feeds on small insects.1

Fotografija: South American black widow — South American black widow. Fotografija: Renato Brito. CC BY 4.0, iNaturalist.

Kako jo prepoznaš

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

Moč strupa

Ugrizi

Strup pride ven skozi strupnike ali zobe, ko ugrizne.

Kaj naredi njen strup, ko ugrizne ali piči?

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

Kako nevarna je za ljudi?

Nevarnost za ljudi: ResnoPo ugrizu je potreben zdravnik. Smrtni primeri so zelo redki.

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

Kaj naredi, ko se prestraši?

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

Če ugrizne

Ugriz umij in nanj daj ledeni obkladek proti bolečini. Poišči zdravniško pomoč, če je bolečina močna, se širi ali se poškodovanec slabo počuti.

Vedno najprej pokliči številko za klic v sili (112, 000, 911). To so splošna navodila za prvo pomoč, ne zdravniški nasvet. Osnove prve pomoči

Ostani varen

Nikoli se ne dotikaj divje živali, je ne lovi in je ne draži, tudi če je majhna in tudi če je videti, kot da spi ali je mrtva.
Pusti ji prostor. Če jo srečaš, ostani miren, počasi stopi nazaj in jo pusti, da gre svojo pot.
Če te ugrizne: ostani miren, ne premikaj se, pokliči številko za klic v sili (112, 000, 911) ali hitro pojdi v bolnišnico. Zapomni si, kako je izgledala, fotografija pomaga.

Ne preži nate. Strup uporablja, da ulovi hrano ali se zaščiti, in se veliko raje skrije. Več o varnosti

Kje na svetu?

Afrika Azija Evropa Severna Amerika Južna Amerika Avstralija in Oceanija

Kako velika je?

Kako dolga je?

krajša od tvojega mezinca

Kakšne velikosti je South American black widow v primerjavi s TABO?

Samo matematika v tvojem brskalniku. Nič se ne shrani in nič se nikamor ne pošlje.

Kako hitra je?

Želva približno 0,3 km/h (0,19 mph)

South American black widow približno 0,92 km/h (0,57 mph)

Človek, ki hodi približno 5 km/h (3,1 mph)

vredno vedeti

Dejstva

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

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

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

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

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

Razbijalec mitov

Mit: Black widow spiders are aggressive and will attack people.

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

Za strokovnjake za strupe

Znanstveno ime: Latrodectus curacaviensis
Skupina: Pajki
Družina: Theridiidae2
Red: Araneae
Celine: Severna Amerika, Južna Amerika
Mladiči: Females guard their egg sacs and will attack to defend them.1
Nevarnost za ljudi: 3 / 5: Resno3

Od kod so dejstva

Latrodectus curacaviensis (Wikipedia (CC BY-SA 4.0))
Latrodectus curacaviensis (iNaturalist): imena in razvrstitev.
Venom Wiki: stopnja nevarnosti, tipična velikost in ocena hitrosti so naše lastne. Poglej, kako jih določimo: Kako ocenjujemo nevarnost.

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