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Brown widow

Latrodectus geometricus

Tentang namanya: The name comes from the geometric pattern on the top of its abdomen (its rear body section).1

Hanya sakitSakit, tetapi tidak akan melukaimu dengan serius.

Laba-laba

Gigitan

Bahaya bagi manusia: MenyakitkanBisa sangat sakit, tetapi hampir tidak pernah serius.

The brown widow is a spider in the widow family, a close cousin of the black widow. It lives in many parts of the world, often around houses and buildings. Its bite is painful but usually not dangerous.1

Hidup di

Originally Africa; now found across the Americas, Asia, Australia, Papua New Guinea, Hawaii, Poland and the Middle East1

Afrika

Beranda

It builds untidy three-dimensional webs in dark corners, in vegetation and around buildings. It is commonly found around houses, and in tropical areas it is usually found around buildings. It also lives in crops such as avocado, citrus, cotton, maize, vineyards and pistachio.1

Panjang

3,5 cm (1,4 in)3

ukuran dewasa umum

Kecepatan tertinggi

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

Di darat, perkiraan kasar

Foto Brown widow — Brown widow. Foto: Jesse Rorabaugh. CC BY 4.0, iNaturalist.

Cara mengenalinya

Black and white geometric pattern on the top of the abdomen1
Usually a bright orange or yellowish hourglass marking on the underside of the abdomen1
Body colour ranges from tan and dark brown to black, with shades of grey also possible1
Stripes on the legs1
Egg sacs are spiky, like a sandspur, and sometimes described as tufted, fluffy or spiky1

Sering tertukar dengan: The black widow is slightly larger and darker, and has a red hourglass on the underside. The brown widow is lighter, has an orange or yellow hourglass, and has a black and white pattern on top of the abdomen that the black widow does not have. In southern Africa, the brown widow's relative L. rhodesiensis, native to Zimbabwe, is also called a brown button spider.1

Kekuatan bisa

Gigitan

Bisanya keluar lewat taring atau gigi saat menggigit.

Apa efek bisanya?

Like all widow spiders, the brown widow has a neurotoxic venom, which attacks the nerves. It causes latrodectism, a set of very unpleasant symptoms. The effects are usually confined to the bite area and the tissue around it.1

Seberapa berbahaya bagi manusia?

Bahaya bagi manusia: MenyakitkanBisa sangat sakit, tetapi hampir tidak pernah serius.

Brown widow bites are usually not very dangerous, and are much less dangerous than black widow bites. The spider cannot deliver as much venom as a black widow, so its bites are considered minor. They are painful.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?

kira-kira sepanjang penjepit kertas

Seberapa besar Brown widow 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)

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

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

layak diketahui

Fakta

In Southern California, researchers suggest the brown widow may be pushing black widows out of the area by competing and fighting for territory.1

Its egg sacs are so spiky that they are easy to tell apart from those of most other spiders.1

A female can make up to 20 egg sacs over her lifetime, with 120 to 150 eggs in each.1

Brown widows are preyed upon by wasps, including blue mud-dauber wasps and digger wasps.1

Pembongkar mitos

Mitos: The brown widow is as dangerous as the black widow.

Faktanya: Brown widow bites are usually not very dangerous and are much less dangerous than black widow bites.1

Untuk ahli bisa

Nama ilmiah: Latrodectus geometricus
Kelompok: Laba-laba
Keluarga: Theridiidae2
Urutan: Araneae
Benua: Afrika
Anak: Eggs hatch in about 20 days. Each female lays about 120 to 150 eggs per sac and can make up to 20 sacs in her lifetime.1
Bagaimana keadaannya di alam liar: Least Concern (South African National Biodiversity Institute)1
Bahaya bagi manusia: 2 / 5: Menyakitkan3

Dari mana faktanya berasal

Latrodectus geometricus (Wikipedia (CC BY-SA 4.0))
Latrodectus geometricus (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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