No. 0634 dari 1 402

Redback spider

Latrodectus hasselti

Tentang namanya: It is called the redback because of the distinctive red stripe along the top of its abdomen.1

Perlu ke dokterJarang mematikan, tetapi gigitan perlu ke dokter.

Laba-laba

GigitanMakan: Daging

Bahaya bagi manusia: SeriusGigitan perlu ke dokter. Kematian sangat jarang.

The redback spider is a highly venomous spider. It is thought to come from Australia, but it now also lives in Southeast Asia, Japan and New Zealand. It often lives close to people, in warm, sheltered places in and around homes, so it matters a great deal for safety.1

Hidup di

Australia, Southeast Asia, Japan and New Zealand; established colonies also in the United Arab Emirates1

Australia dan Oseania

Beranda

It lives in warm, sheltered places, commonly near or inside human homes and other buildings. Food scraps and lights attract the insects it hunts, which brings the redback closer to people.1

Panjang

1 cm (0,4 in)1

Kecepatan tertinggi

sekitar 0,92 km/jam (0,57 mph)

Di darat, perkiraan kasar

Apa makanannya?

It mainly catches insects, but also spiders, small lizards and occasionally even snakes or a mouse that become caught in its web. It squirts sticky silk over the prey, bites it repeatedly, wraps it in silk, then sucks out its liquefied insides back at its retreat.1

Foto Redback spider — Redback spider. Foto: Paul Whitington. CC BY 4.0, iNaturalist.

Cara mengenalinya

The adult female has a round, shiny black body with a red stripe on the top of the abdomen.1
Underneath, she has an hourglass-shaped red or orange streak.1
The female's body is about 1 cm long, with slender legs.1
The male is much smaller, 3 to 4 mm long, light brown with white markings on the upper abdomen and a pale hourglass marking underneath.1
Its web is an irregular, untidy tangle of strong silk, usually in a warm, sheltered spot.1

Sering tertukar dengan: The false redback spider (Steatoda capensis) has a similar build but is uniformly black or plum-coloured, and it has no red stripe on its abdomen.1

Kekuatan bisa

Gigitan

Bisanya keluar lewat taring atau gigi saat menggigit.

Apa efek bisanya?

The venom is neurotoxic to vertebrates, meaning it attacks the nerves, and it causes a condition called latrodectism. Pain starts around the bite and typically becomes severe, spreading up the bitten limb and lasting for over 24 hours. Localised sweating in patches of skin is highly indicative of latrodectism, and nausea, vomiting, headache and agitation may indicate severe envenomation.1

Seberapa berbahaya bagi manusia?

Bahaya bagi manusia: SeriusGigitan perlu ke dokter. Kematian sangat jarang.

The redback is one of the few spider species that can seriously harm humans. Because it often lives in buildings, it is responsible for a large number of serious spider bites in Australia.1

Kabar baik: dokter punya obat (antibisa) atau pengobatan untuk ini.1

Apa yang dilakukannya saat takut?

Its bright scarlet markings may serve as a warning to potential predators.1

Jika ia menggigit

Cuci gigitan dan kompres dengan es untuk meredakan nyeri. Cari bantuan medis jika nyerinya kuat, menyebar, atau orangnya merasa tidak enak badan.

Selalu hubungi nomor darurat dulu (112, 000, 911). Ini panduan pertolongan pertama umum, bukan nasihat medis. Dasar-dasar pertolongan pertama

Tetap aman

Jangan pernah menyentuh, menangkap, atau mengganggu hewan liar, walaupun kecil, dan walaupun tampak tidur atau mati.
Beri ia ruang. Jika bertemu, tetap tenang, mundur perlahan, dan biarkan ia pergi.
Jika ia menggigitmu: tetap tenang, jangan bergerak, hubungi nomor darurat (112, 000, 911) atau segera ke rumah sakit. Ingat seperti apa rupanya, foto sangat membantu.

Ia tidak mengincarmu. Ia memakai bisanya untuk menangkap makanan atau melindungi diri, dan ia jauh lebih suka bersembunyi. Lebih lanjut tentang tetap aman

Di mana di dunia?

Afrika Asia Eropa Amerika Utara Amerika Selatan Australia dan Oseania

Seberapa besar dia?

Seberapa panjang dia?

cukup kecil untuk duduk di kukumu

Seberapa besar Redback spider dibandingkan KAMU?

Hanya hitungan di browsermu. Tidak ada yang disimpan atau dikirim ke mana pun.

Seberapa cepat dia?

Kura-kura darat sekitar 0,3 km/jam (0,19 mph)

Redback spider sekitar 0,92 km/jam (0,57 mph)

Orang yang berjalan sekitar 5 km/jam (3,1 mph)

layak diketahui

Fakta

A male redback can successfully mate with a female katipō, a related New Zealand spider, producing hybrid offspring.1

Males often mate with a female who may then eat them, a behaviour called sexual cannibalism that many arachnids show while mating.1

In laboratory tests, redbacks survived an average of 100 days, and sometimes over 300 days, without food.1

After mating, a female can store sperm for up to two years and use it to fertilise several clutches of eggs.1

Spiderlings and larger females steal food from other spiders' webs, and spiderlings sometimes eat their less active siblings.1

Untuk ahli bisa

Nama ilmiah: Latrodectus hasselti
Kelompok: Laba-laba
Keluarga: Theridiidae2
Urutan: Araneae
Benua: Australia dan Oseania
Anak: Each clutch averages 250 eggs, housed in a round white silken egg sac. Spiderlings hatch after about 8 days, though cooler temperatures can greatly slow this.1
Umur: sekitar 3 tahun1
Bahaya bagi manusia: 3 / 5: Serius3

Dari mana faktanya berasal

Redback spider (Wikipedia (CC BY-SA 4.0))
Latrodectus hasselti (iNaturalist): nama dan klasifikasi.
Venom Wiki: tingkat bahaya, ukuran umum, dan perkiraan kecepatan adalah buatan kami. Lihat cara kami menghitungnya: Cara kami menilai bahaya.

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