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South American black widow

Latrodectus curacaviensis

Perlu jumpa doktorJarang membawa maut, tetapi gigitannya perlu dirawat doktor.

Labah-labah

GigitanMakan: Serangga

Bahaya kepada manusia: SeriusGigitannya perlu dirawat doktor. Kematian sangat jarang berlaku.

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

Hidup di

Lesser Antilles and South America, including Brazil1

Amerika Utara, Amerika Selatan

Laman utama

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

Panjang

1.1 cm hingga 1.7 cm (0.4 in hingga 0.7 in)1

Kelajuan maksimum

kira-kira 0.92 km/j (0.57 mph)

Di darat, anggaran kasar

Apa yang ia makan?

It feeds on small insects.1

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

Cara mengenalinya

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

Kuasa bisa

Gigitan

Bisa keluar melalui taring atau giginya apabila ia menggigit.

Apa kesan bisanya?

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

Berapa bahaya ia kepada manusia?

Bahaya kepada manusia: SeriusGigitannya perlu dirawat doktor. Kematian sangat jarang berlaku.

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

Apa yang ia buat apabila takut?

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

Jika ia menggigit

Basuh tempat gigitan dan letakkan pek ais untuk menghilangkan sakit. Dapatkan bantuan perubatan jika sakitnya kuat, merebak atau orang itu berasa tidak sihat.

Sentiasa hubungi nombor kecemasan dahulu (112, 000, 911). Ini panduan pertolongan cemas umum, bukan nasihat perubatan. Asas pertolongan cemas

Kekal selamat

Jangan sesekali sentuh, tangkap atau usik haiwan liar, walaupun yang kecil, dan walaupun ia nampak tidur atau mati.
Beri ia ruang. Jika kamu terjumpa, bertenang, undur perlahan-lahan dan biarkan ia pergi.
Jika ia menggigit kamu: bertenang, jangan bergerak, hubungi nombor kecemasan (112, 000, 911) atau pergi ke hospital dengan segera. Ingat rupanya, gambar boleh membantu.

Ia bukan mahu memburu kamu. Ia guna bisanya untuk menangkap makanan atau melindungi diri, dan ia lebih suka bersembunyi. Lagi tentang keselamatan

Di mana di dunia?

Afrika Asia Eropah Amerika Utara Amerika Selatan Australia & Oceania

Berapa besar ia?

Berapa panjang ia?

lebih pendek daripada jari kelingking kamu

Berapa besar South American black widow berbanding KAMU?

Hanya matematik dalam pelayar kamu. Tiada apa yang disimpan atau dihantar ke mana-mana.

Berapa laju ia?

Kura-kura darat kira-kira 0.3 km/j (0.19 mph)

South American black widow kira-kira 0.92 km/j (0.57 mph)

Orang berjalan kira-kira 5 km/j (3.1 mph)

berguna untuk diketahui

Fakta

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

Pemecah mitos

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

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

Untuk pakar bisa

Nama saintifik: Latrodectus curacaviensis
Kumpulan: Labah-labah
Keluarga: Theridiidae2
Susunan: Araneae
Benua-benua: Amerika Utara, Amerika Selatan
Anak: Females guard their egg sacs and will attack to defend them.1
Bahaya kepada manusia: 3 / 5: Serius3

Dari mana fakta datang

Latrodectus curacaviensis (Wikipedia (CC BY-SA 4.0))
Latrodectus curacaviensis (iNaturalist): nama dan pengelasan.
Venom Wiki: tahap bahaya, saiz biasa dan anggaran kelajuan adalah penilaian kami sendiri. Lihat cara kami mengiranya: Cara kami menilai bahaya.

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